{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "117444636",
    "entityType": "Track",
    "nonce": "0x5a0ecbad7f5aac1faf8133a80e09e6b8af46bbebfb7b3ba10f324049b7932f00",
    "signature": "0x77820a52d602a61bcc089329154f42532c9489eb2f184c65154ca99b698011177aa3f3926f116c33bba29d0b29e6b1b35516716e26cebf55ddc79de6ea76b22a1b",
    "signer": "0xc8c4f61F41Ee9F540C9b6b684D16ef071F16789B",
    "userId": "828368024"
  }
}