{
  "manageEntity": {
    "action": "Delete",
    "entityId": "671421",
    "entityType": "Track",
    "nonce": "0xeef78b4d02edaf89f725ca43079a212e5e897d57848a5cae9252524a282bc115",
    "signature": "0x454eb40326d828fbf2be5b6bed7d1913174f7f0b8186c6eb282cd57eaebd54b91e94f8034b2cba064199637b605104057a99ff33ebdb52bee2e9ee636d3065ad1c",
    "signer": "0x6D5D70d78A0458836C6A4b0d3908a973bC070B83",
    "userId": "357641"
  }
}