{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "508292487",
    "entityType": "Track",
    "nonce": "0xedfbe2375a2a6669bee2055850a86e54bfdce0735f609e56977717dc4571b556",
    "signature": "0xb64d02b0b0f8a9e97f06484ba59faf75d10356c092cad71bba2b05ecefeaaae94db21f7552ac0af1865df156823e51176e22cbab97b239a11f86a0e893af1c131b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}