{
  "manageEntity": {
    "action": "Update",
    "entityId": "305150222",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x94371c37ba6c4cc28ac1e84c9ac4d98e48be75820692786a2dd0f8cd951d6035",
    "signature": "0xd5daae4ecb957504664bdb8a12e4b7bde463f1a46d74d1178cc123745093962019b11b1a2b09bec965ae23625698e5c1d18b820bcac0d49d78b7e9d402e1cd7a1c",
    "signer": "0x9333fc681dF661803754A168cCaD828c8246dfa3",
    "userId": "305150222"
  }
}