{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "156819",
    "entityType": "Track",
    "nonce": "0xb7cc8ee7b29edf1ff7c66b9c15bbe940c644830855b16b224f197716e5798fa3",
    "signature": "0x7c5369557d13041d7ce28864f7095c3dc9d2d2c66493dd46cb3697198b8422fb4af3a0bb105b37e7f6f2a9ffd172ca707d2ca2a39d02443abc6eed58cf9220b41b",
    "signer": "0x60ed8F2d6Ed3899f6eF421942Fcc2c40b374836e",
    "userId": "7598926"
  }
}