{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6020",
    "entityType": "User",
    "nonce": "0x54d9b019cb707b289a9d3ac9ca62a2dedf669f26e7b5305ad5057b6dc349fb2b",
    "signature": "0xcfe66699e8efdaf2ee140a2030f328da84a2be46d64b4305b095a1e11881764c234e4c198b284101ee665147a3e318a23e7f7b73dc3d6963afaf3570054248ce1b",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}