{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "949584940",
    "entityType": "Track",
    "nonce": "0x9ccc08b4cbeab40676d767d6274ef2e2fb93fd2aa01f6b19c66c78c3e2f86f25",
    "signature": "0x6684cc4e73977e14bf1141163998910addf0b80ab1d9fae56a5d61e8296bfde3281d07b1b7b41484af321e14030bf688146ea3af5fb466f22f840e1961af06cb1b",
    "signer": "0x41Fd0c5C6Ee46Fb99a498db2e7135c69490cB85F",
    "userId": "507333378"
  }
}