{
  "manageEntity": {
    "action": "Update",
    "entityId": "243257051",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x383e2c61b9931d5a4318d4d16cdab8cc72470b2bbca6b6ba60a0e0de1c6c2eba",
    "signature": "0x41d1b62619c851bf988b825bc8b1ac104b25a69dd6a27616e1b104e57176ed5c51a3a3f50a9991155609f73924e2378d0c5d4b9f125d55b49784caa8b06c76841b",
    "signer": "0x8EA5798e08E1Fa9c75787f2cb2790614cc99aA66",
    "userId": "243257051"
  }
}