{
  "manageEntity": {
    "action": "Update",
    "entityId": "116504833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x28576bd027257a102aa72f7996ae1b7895851631e125e1e4b2319c8979020913",
    "signature": "0x519ecb249b93b86cfe75d5aa624e4d008711c6a5dfa3543b9b9f599164f959f679a9c242cf842609c5538a17b4389b183a3a968d96b3d7317902e3dfc84b3d9a1b",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}