{
  "manageEntity": {
    "action": "Save",
    "entityId": "1095828968",
    "entityType": "Track",
    "nonce": "0xa2078125376c648e23c99154446c0ace3f862c78e60668aaa13489d396f2ca0f",
    "signature": "0xb6cd1297ebaa05cba6647a5013697789404e276c74dc805f95150423d5229b1a2b6f21b3b521acfc86d4ff2c66217635f87715079a613fbf930d20f33f86a7341b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}