{
  "manageEntity": {
    "action": "Update",
    "entityId": "439828432",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x47a9e061ab9d5729271b7b1fc3edb0ac5c6c40c34a4a131c85b5f51dc73e0074",
    "signature": "0x80af257588642757d6e221c60b6696332904c383fa988efa0ade4d264e24ca0536b2c2681cdbdadcf1d4ce503b970ee4f7893082163fb84ba20a5cca4b827ed61b",
    "signer": "0x822744782B721382Faaa6c76100F848a141849c5",
    "userId": "439828432"
  }
}