{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123881",
    "entityType": "User",
    "nonce": "0xd68c2cf587576dd35f78844acaa63c4ccd2e7d17c95b4716f316bf113ea55038",
    "signature": "0x7362fbce03917567d8aa281c8822fd4ceab2e7133be951e55dafd8afdd19d5ef7e555faf8b8c0c55ec8daf34ae552ecd6ad1e8440530647ad913b5e3138dfc421b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}