{
  "manageEntity": {
    "action": "Update",
    "entityId": "469167571",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradtrttrxl7wsmj2xs2xazrfd4rr5a5fp2yg2izzkl7pl6hyc33loq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1332585669},{\"type\":\"playlist\",\"playlist_id\":2084958373}]}}}",
    "nonce": "0xe59cdaf8de60d038f565b42585bc0a1a84c10b24a47848dad0bcc4fd3019a547",
    "signature": "0x267783de1ec9d856dcdad67b68028860cd534d44ccce470d913e51a2046c0e534659a256a1ad53ec8a7c8eb8462261141d386e2a4e09e27f13d7f136e98c5e441b",
    "signer": "0xD8a51B5826a7BF17e04f70223177e89259D8ab3b",
    "userId": "469167571"
  }
}