{
  "manageEntity": {
    "action": "Save",
    "entityId": "1086694631",
    "entityType": "Track",
    "nonce": "0x0a990015cf2a77cc09b980736c3bf479fde0840759e7622e7238a64d1f040a55",
    "signature": "0x50d2a188f2afa1fa29ce3ab9f0554cf294b4601c21bc16e8586e33a8035220cd6fcb97ee0771168dc7d15eb7100b12e8af787a4eb2e735c017fd1c13149635491c",
    "signer": "0xd14727622fa26ECD6Ad72cADB6b96823f5fb65DD",
    "userId": "173494086"
  }
}