{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "121458",
    "entityType": "User",
    "nonce": "0xa8836016d555c4a95247b271a48dcb26801c66054e8f5df5fed5f8bc26b99f63",
    "signature": "0xe5409fbe37f093e29688dc8079592baf9f3460fa355e02e47eee6acea18c526b481ad81b6cdce94c4a0d6d2fb0aed638089e92532570cbcbc1865ceedde6bf3e1b",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}