{
  "manageEntity": {
    "action": "Save",
    "entityId": "48826",
    "entityType": "Track",
    "nonce": "0xaefa48df956e2320d2849a3b1a7727ed8c2da981dd7d82698d69f037da06f537",
    "signature": "0x38aa2859cf1e1e0b1138c52232919196cd2533a49fb433024ad58f4e744c89ef3ee718000a6dbffdebfe8328f25b8f318a7cf4b5d5e57515f71673c94a6955ab1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}