{
  "manageEntity": {
    "action": "Update",
    "entityId": "142361762",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera5btbseduoshtyzc6jpdwdqrufs4kfcpovaasqpgyvvsgpiz7strq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":78946}]}}}",
    "nonce": "0xf2c8b92ba017ba41356fe34796652b7471e79437e8ef2c7fea5692a542969757",
    "signature": "0x4a1141f24cf66632ff2e1b8035e138002a8d815923402711329d78b2dfbda6c21eb54946b0b9a854b018ee72c2a9d0e530f8baa729cae384c396caf52d4f416d1c",
    "signer": "0x380Ec65A36A1655B8F92293e21aA15581356Fa85",
    "userId": "142361762"
  }
}