{
  "manageEntity": {
    "action": "Save",
    "entityId": "2035349881",
    "entityType": "Track",
    "nonce": "0xebbf4367835fcb932575542c6d320bb68b942cfbf922c2243928078e2e94871e",
    "signature": "0x7c5e32cd72ab79d8eaeea019139ade76233b298da61d8fd5814c0ab4062fc0690a47cc7f48d281f23c7e44c2d634ea2848171af43de973eacfda6bc740b3246a1c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}