{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "914963",
    "entityType": "Track",
    "nonce": "0x35ac401978a7488031b3cb0b0d467caa89320c184386979d9614a5288b918120",
    "signature": "0x0aa916804c201ab0b6879ac0997a960ca09dbe068f52a245c9c5b99275455ca25f8cc4129c2feb4e7460409286a4f4f82caddad716550027c5db6b169af832e71c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}