{
  "manageEntity": {
    "action": "Save",
    "entityId": "1527753764",
    "entityType": "Track",
    "nonce": "0xba1df17bd64650ca149120dc4db5fc644e6db133f79667263f96937749de7ef1",
    "signature": "0x8ee54e9811d4ca11bf0ae4a8e08295840a0fe55ae212799389df5f15727dac8b0ae0384b691be480a4237b829f7b5a7061d1c6a415a2d9a3b280b36c92f291df1b",
    "signer": "0x0b901AE3Eb7b439095858D82Ff194CfeD0Fd3396",
    "userId": "167557"
  }
}