{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "942886",
    "entityType": "Track",
    "nonce": "0x1aabc34e2ae2b5d7273250364714bfe5cbd3184529ac4dc747193d15a25f9752",
    "signature": "0xa771d9328598d98d5cbac0d4c54ed2c937bd99bec3fbbffaca282bc4af01d53824732b7268e6af81afda296da70d5f8d8f2987d379710227cf59d6e4dc86861f1c",
    "signer": "0x981A97dF7c03A51c6fdcB509e0724c3Ca3E8F4Ec",
    "userId": "937728857"
  }
}