{
  "manageEntity": {
    "action": "Save",
    "entityId": "997419278",
    "entityType": "Track",
    "nonce": "0xcd86102e6976d7df9528d9664428fe3eb465248c21e2e72fd014c4227573e010",
    "signature": "0x412039c7a973d261085b4ac5bd9039d520227f5c06f9be14b2e81aceb6652b0d68b8cc797733e5b5f3b1162cea1a60e3c77e93bd9b9d2470c0521bc025590df81c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}