{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "498038287",
    "entityType": "Track",
    "nonce": "0xf138f8d12be42c623e7a1ba32d5d633f3a6744fa2aa8f8b6b755836c28bba910",
    "signature": "0xd956a2ba6b4f35b4db703192463f0635fd6fa7d4c6f1ff662c7610469edf021378260663584d8be5f977d4a89998577553f56b7271091c95e5de0005f5c4beaa1b",
    "signer": "0xBA2d779983D6bf434D3CcAd9C1bF495735d1BA8E",
    "userId": "28393"
  }
}