{
  "manageEntity": {
    "action": "Update",
    "entityId": "293137833",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x244f860e6ffe0130512f3466dcb6c4d64171c94b921bf934844efb5bbd142eec",
    "signature": "0xc7a455210cd8e74957f221c62d927c7595a37ee1a6d2993cb5f2758dece52c6717212e5259b7fbd63a206561d81f795e750714e079d9c4aa72b6c68a14fa1ce51b",
    "signer": "0x9139bE80Cf6D934A072B63279dcE183f715CA770",
    "userId": "293137833"
  }
}