{
  "manageEntity": {
    "action": "Update",
    "entityId": "791201705",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd07b5d81ab8c2c13d547f646a99b68f64f25326775229fcc9ecd1306760ee45e",
    "signature": "0x4de2b308687368d922264fa6e87eb10d94f0ee8ae214130a2bb7185a38de25bc256c4e63689e867549b891b29a3127f7a81759b311fedf773313d48e5bbd7b981b",
    "signer": "0xE73f883Db3421168B410336C936E58fECf86cfA6",
    "userId": "791201705"
  }
}