{
  "manageEntity": {
    "action": "Update",
    "entityId": "855403",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8000709cd6c6b75dd0a7aebeef0c4662f34d77645d47365c5eabf6d1430b0906",
    "signature": "0xa6d1da7f40c15b928223066ec1b61a4a90fc6586d6e0e610fb3f735d5ab41e286966b7687a41755ffe8b66410b84fae2037634f7e97972acf7e50421f39796ad1b",
    "signer": "0x8C7bee798c0AB93Df67Cd00879d67b02274644CF",
    "userId": "855403"
  }
}