{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "674702010",
    "entityType": "User",
    "nonce": "0xfd6f09febfc0a69dc3a79aea0d5126a98a932d454024ed741de7531c611becf4",
    "signature": "0xa9e413b2ed6a462ca15cb95106410c7bef704708fd7d91454e630be68392973a7351215fb092e630d1e949dc432af919c99145daae91558e64682f87e83f7f0b1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}