{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "284612",
    "entityType": "Track",
    "nonce": "0xbf89b387770b39787eedb6326cb558547734dde5556d37e2880c37068771b53f",
    "signature": "0xc03592ce37a835c1fa607b98eb20897d0ccce462b1be8d4cf4619cb93ffff5f90fe2a8cbcfef2c613d06eefc8503a2345e48688e107848c4d2b5b8b4751e034f1b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}