{
  "manageEntity": {
    "action": "Update",
    "entityId": "141224956",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierakm7vlqc52np34k2jrxq4cf753pqsnrm5o7caws4glbcsromkbs3a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1193945533}]}}}",
    "nonce": "0x9a4a8427efa6cf3154ced81c68eb9dcc487f07ddd36dd3197bbadbf55d083046",
    "signature": "0x70004975301c433c990b6055af5e260a6e9108f9a4097281ef80d08bfade055e29d11e67f063f3d662a25d9ad49efa47946849621f4d7f74a77c94da820560511b",
    "signer": "0x887ff90b6e9a2F5c6Cf1E862028545C66FC95d72",
    "userId": "141224956"
  }
}