{
  "manageEntity": {
    "action": "Update",
    "entityId": "770154030",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb62285e16b22b4c51472339ebf1ab95f4155c853011a8e814fdaada4b3f82d2d",
    "signature": "0xfa53950bb18c9f90da2bdf2c878333fbc3cfd1362f5844679f94e3e9f07aba1d280f16b525e01d1a3f12aa52c8aa832f83229ed7acaef8b700ef33eb7be11af31b",
    "signer": "0x74890D1DB0eadA2cc7FAaEC8D37F9d9aA80cF5B5",
    "userId": "770154030"
  }
}