{
  "manageEntity": {
    "action": "Save",
    "entityId": "1596299758",
    "entityType": "Track",
    "nonce": "0xdcedb3f33b2a1f2f1d429b46d299e2a1df4d0956448af683634c37802cfc5479",
    "signature": "0x606e5cdddecc9cfb1868f26882b02fdad2c1a5a3166a12f3e730c4ea88026bc62aeb97542dd7182fbadba45a8cff166a6105d7bb763b7fddd01ff4cc951f9e901c",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}