{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1481643691",
    "entityType": "Track",
    "nonce": "0x9a1b9461885b601e881e7aec6b83e3d2dc88fe40906cf242e1a68832ea4d9707",
    "signature": "0xe969b5253c1323d101a0a884b4841d0c7f068ff43295b4ac13b3b9cc0ebe966507927ee4e423ad03ca7b8866e5daea95186d898b3ba038279e719a18d0b211261c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}