{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951546743",
    "entityType": "User",
    "nonce": "0x4dba8807b081a982b010564d217c11b4a5c8cdde8afa332bc92584c6eb1bd150",
    "signature": "0x85503f7cca8a4872532ee49fa17c9ef7ce504c7dc689e79d59d3fc92660706206fb3086f9a4fb75a911099d99e152499e923b450e48f4c207396512fb31f0e8b1c",
    "signer": "0xD07A680d4F48bA7Cc076c23f40870AccBbad1987",
    "userId": "16411799"
  }
}