{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "124989508",
    "entityType": "Track",
    "nonce": "0xccc8967134d35cb3110d763f50a19b1c2e3f52620eae0b9a24d5cb72383ccd2b",
    "signature": "0xa316b0196e1d71716cf8181cea12df4f8139d91569beb10a3d99f225a6b926b8342856ca68e54b0ff21a8d766a81e7e91135e9d2bb2d67d4de867bb916c72aa81c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}