{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1887966",
    "entityType": "User",
    "nonce": "0x36cd753e0e778bf787e707626dbbcf031d8916df2852c96b0e1cf2a7429f494d",
    "signature": "0xc53c7ba6c99a0f2d8b81f1ee0cce9eef84c093a1b3fd4812f9fad24767ef11793b537ba2f0469d9732c37e014eaac8bca42ffa3bb6ac3c2989a5559d431ad63d1c",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}