{
  "manageEntity": {
    "action": "Save",
    "entityId": "110641410",
    "entityType": "Track",
    "nonce": "0x22cc241146fa1e1189521c66a326c30d4a8cef2926d8f81982de7dbd3cefb87b",
    "signature": "0xd6a853705c99e305e7382b00d78113e71ae84db07375389bede1e7246007527a1fc5f4664845e99486bffc1e358de38fd5305a3db031e7f9fffefdba6b3f3aba1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}