{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1259278093",
    "entityType": "Track",
    "nonce": "0x1ed502463d45d1129edd33e6ddb2279899b709db3ef9d79533f72bb106826bc7",
    "signature": "0xc0d7cd3c26359586357f418377f6fa61f83ed5dfd8d08926f0a6e931937a7e621ce7248fe5ba24c1f191beda5ab6348c5de48aefe834e0ae749674be1f3dd8241c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}