{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1009249513",
    "entityType": "Track",
    "nonce": "0xd06a4ce7d4d31881254c2de7a02cd933ebd2cc163e6aa2e7b5a83385398157d4",
    "signature": "0x277af34d55d6ed02ea888177f355ee21c8a5a8effbe8436b950cdb3204fbc7c958ac0cc9d414ce0bb61f68de86ab08c27971f5bd54dbb0d25c2760979eaa46d01b",
    "signer": "0x77AfB3bbF8b185bA09F314dE4a0D619f5d0ec99B",
    "userId": "819390431"
  }
}