{
  "manageEntity": {
    "action": "Save",
    "entityId": "1109095124",
    "entityType": "Track",
    "nonce": "0x5f1b8ba3f7fe5bca63366f2700c05c27717b3f8869d6cc6e343b0742001a4eb1",
    "signature": "0xc897586937c1ed57b6419ee5a3b101344ee5271ae1bc898458a6940c06b4d6bb1a7c1587082db29f5e3b3292650fe33164071aada81b0cca3855a10a80e68d7d1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}