{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xaa7af44ef2cc88bd793162d95332dc1cf5afd7ee6e1002316fcddb7506c89978",
    "signature": "0x492f79ae44eae28951484deb9c80d0e672184cade6cfba77bf32c6b31493808c5b2c396d9c613575cdd60bec9316df003453a29c4fe3884caab9dc53d4eeda831c",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}