{
  "manageEntity": {
    "action": "Update",
    "entityId": "701952591",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xae5de13aaf96d356052a72ad3969c41687f90671222df11f1eba684ed84d791a",
    "signature": "0x6edd75a4e018b960d07d505bc5ab1e3141a82d2df95ed5e2c9fa32458adef8c278797d4abf0a99ea197826a174000181a639b9f421c9fea6592f9a4ba39f4b5d1c",
    "signer": "0x54818C1d1840F835A41084a805899cf92493d969",
    "userId": "701952591"
  }
}