{
  "manageEntity": {
    "action": "Save",
    "entityId": "92864922",
    "entityType": "Track",
    "nonce": "0x815afc32d3c8d599968e81d9b416bf3fbe8b5e1e71661266aefb8b187d526e10",
    "signature": "0x020a0397b19de27889bb3d2c9c1c5ba8962f84767941611607f2553b507ed643508246d4b5da60470834b51194899478d4c39d88114060dfc5c09ea2ee987b721b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}