{
  "manageEntity": {
    "action": "Save",
    "entityId": "797996940",
    "entityType": "Track",
    "nonce": "0x27d0b58993a8d5da1f1f1605a8454cd7eb2d077a244383f6463a77a15ee3468d",
    "signature": "0x9f907a0097bccb94d8bd61ae460ea3e46ba7b4b3f88fe7dc8d8603b284bcd823464aded60681dba716d0d9a166cc81bf639215e3bb8b5ec8b1458ddd3b857f4b1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}