{
  "manageEntity": {
    "action": "Update",
    "entityId": "483443932",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x69787d1100dfe3e500b1907937c71ebdbc1223274247fe85640b29c19a14b01e",
    "signature": "0x4bd9f17b93f94dd405588eac058770e5943a46b2aadbb276e6011f8ea2b846dd1f7df8fcd0d6b101d56bf08762a31706b214f56acd5f4be5811fbd572acc3e101b",
    "signer": "0x526E3F862650aBDD378661a02a8e67c4F92B9aC0",
    "userId": "483443932"
  }
}