{
  "manageEntity": {
    "action": "Save",
    "entityId": "2069835896",
    "entityType": "Track",
    "nonce": "0x2dad6126a564ab7ecc9e2dd1b53bf65a97e47e289b71747ab2252aa49492c62c",
    "signature": "0xd4021d8c76e5e5761edfa3c4b88d1e5b696378b2664599af0870f1e149a00574207e1b8d4ef3af4270130e6985017c593068ac1132e57f4d3f641642c0dff44b1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}