{
  "manageEntity": {
    "action": "Update",
    "entityId": "570505045",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xfe5671eace0f154af7d6f8a4cbc557bb73b9161358b3ad573f2fb99dbdd00f5d",
    "signature": "0x1c2b01e608eb2b22aa41fb5e5108012db246f9959323a69b0f6bcb73acac84d52c2c5ec61eb1fa59ebd1d81f6185c1c265080c1cbaacb334432ffaa13965730d1c",
    "signer": "0x00b79791F10Dc166B936fa25519bBBB51EA93551",
    "userId": "570505045"
  }
}