{
  "manageEntity": {
    "action": "Save",
    "entityId": "1061842",
    "entityType": "Track",
    "nonce": "0x04a55df1aa75c0eee89141abdcfbc71526cc75b1bd10ded2175ce444ff7ea70e",
    "signature": "0x3bbf3ced1bd327e55d4f273eeed58044c00c9bf95268c153907d78f105c241c1534c9eea66d0d7a68a4f346f41794aa03be19fab00987cb129ac3c6afe20b28c1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}