{
  "manageEntity": {
    "action": "Save",
    "entityId": "1110218",
    "entityType": "Track",
    "nonce": "0xdbc5bd1c8ad0df355c58bd41d958fbaaa969bb6fed03b62579856c2e3e542bc7",
    "signature": "0x5a3a2499b93cacb38e13ae6e0579fa21849d80e7b278894322f9db444b842c620bd9604784c929b96ea61c01a374206d138eaae430acd73561592f3c80a27ede1b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}