{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "11600148",
    "entityType": "Track",
    "nonce": "0x4f2bdc495eb008f076619dbe0410db0260be51a5a95ba2d97ac9c545d1c099af",
    "signature": "0xb1ba7f4b19efd1810edf2c9c65d66409068f41256f47dbb42c206431e5074f133840a947d6236a6861b4f2af26d1ebb4d0070f682c68e3e389a94a3a518799581b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}