{
  "manageEntity": {
    "action": "Update",
    "entityId": "274329356",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x353376c24d3d71dd5682dadf00ed3f8ec1842eb44750b0d859328fb4a9257d40",
    "signature": "0x804e7c14aafaac577e3759b79c578e1740073aea37ea9badf8af39f9368991a94d03cf14b9b7335449b1cdf51f2bf2b54c63e0e611a05d2ef66fda27035821e91c",
    "signer": "0x7Ff131D44721BcC4A48b496f684DCEA984Ee86B5",
    "userId": "274329356"
  }
}