{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032416840",
    "entityType": "Track",
    "nonce": "0x0718bb407a97c9293bd537dcaac3f0d50979a9f11556f4a19542e21e683a0e74",
    "signature": "0xcb782fcc6192fca208659a8a1d8f67b476e2f5fe6e96a8465d37cc1f5f05d6d132163a5ad55823063a17f42bb93d814d456ce9764a464898782b4d651458e0e91b",
    "signer": "0x2B171214e998033E806F72301307B2160CD94DdB",
    "userId": "489165782"
  }
}