{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1188388386",
    "entityType": "Track",
    "nonce": "0x2fc6f3a7666c33e64620327275f81f3e41ed58e67ec037fa6319cf87eed832a2",
    "signature": "0xfcc4ff13050450c0097fc2639ad7fb78cd11a0f307cdd4deb65ab67f942e95e046cccb18eb5c234c6fca7022288d3a8f8e9565ab1ca9dcd8fed2d3e64152857f1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}