{
  "manageEntity": {
    "action": "Save",
    "entityId": "2107169195",
    "entityType": "Track",
    "nonce": "0xa83ab36cf0a6b1041b78540901c134574c8aee99fa2c6ed230297df17aab64bd",
    "signature": "0x77ee434957de7e10c4d7fadc64b6d73b75c2544e468a109c0b1eff801d86be1b1a8e3db798b5aae47f4023d7584e69d618b084e2ce872cb854c9b376e252a54c1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}