{
  "manageEntity": {
    "action": "Update",
    "entityId": "526151937",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8e030351155777c6e058b572df8e184aaa149c1a935ec34235443979129159cf",
    "signature": "0xbb56727bf93e708874df551405f8893fd3e1df9e25499547a8d0d36fa716b3d04b59c2a6f6764f0d959d52d6791201a0fd7a5b9f4fbc5bfdedb2a8d2b9d8bae41c",
    "signer": "0x84C613ED41323EeCe86518c76e016D159Ab92987",
    "userId": "526151937"
  }
}