{
  "manageEntity": {
    "action": "Save",
    "entityId": "1482363576",
    "entityType": "Track",
    "nonce": "0xdfa4204487c74701f3556dc25f249eca23bfab11cbe0e7f72db3f76f0069dbb2",
    "signature": "0x1ce9da0b038990dc4dfb66fab7d7df1758aadcca7c0e086c63e571e555c5f1220d13b622e6ca6e8405601c6c28f0dc8fff226187887c752254cac2df894f5a261c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}