{
  "manageEntity": {
    "action": "Save",
    "entityId": "2084692046",
    "entityType": "Track",
    "nonce": "0x634ee9b215973c3d8ee13dc7462436e165b061a5e855f87c46326921a0c91f5b",
    "signature": "0x0ab16ea7e21694420621659c932e9d4ab68a45e0ccde61798de379109dc73d1c2b17d5823848ed3f51751a1b9f7bf0657f8833e5110003d51d019b5259a7b73e1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}