{
  "manageEntity": {
    "action": "Save",
    "entityId": "83046075",
    "entityType": "Track",
    "nonce": "0xd17569d27f1783a2ac52bde73aaa857d3aa9632f2a9e7c93889eba2b2a472caf",
    "signature": "0x928b817ffec4c09caff73242a01c419ddc0a7665d3bed7a387514664b49d18c33ca04aa95ecad47b0a100d2ee63fc55615d4760d1928374a17fa881fb6c1235d1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}