{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x280c0b53d6c4ddae5f474380ff6ffbf4d456e04978cce44e85df034fb44fef0f",
    "signature": "0xf9080279ce392225d62b6b77262e56964a4d786867b620a67427758594404ebe7ed52dff99bd8eb2631b74e9d83ef8f664905344886cd2262e003884ab32fed21c",
    "signer": "0xa0F0793d8F949E73Ff78767d68232c2848649659",
    "userId": "933228913"
  }
}