{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x00f643645d1568a2ca5ac714dac90ff517fe7008e039016b3742991a90cbef71",
    "signature": "0xd2f1bc35798c5ed06008efb637b88e52313715ecc05fb533e689e7e7909d377803c0dddf692954322144d79bd7cc2baf10bb8ac531ac7f0a3a6cbe353dc993381c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}