{
  "manageEntity": {
    "action": "Save",
    "entityId": "1168296020",
    "entityType": "Track",
    "nonce": "0xc30c07ead482f1739d9b04d3315780c4de08fdaa29de5b0860e9568300b2d102",
    "signature": "0x446c5222ef0122c84d2f8230dcddfe428576f676e336f875201b826e505784997900d6e2083e3fc5dca2e221eed8685efb40c49fd8e0006e6c761cf2877b8ba21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}