{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x8e99e8079cc1613068cc5205b1fb56ff7dde554c7f83169493a664fc6280afa5",
    "signature": "0x2d1d2ae92b082d510c4d7ab1abe87acd3e19d5880844416f9119c4f489e337181857bd418e524b5a3e3c44f1954a6c1a4e873c6b55e7b3dbdc02ae8202e4068a1b",
    "signer": "0x06319Bacff0A4B00a2ba469F00671687201fa74E",
    "userId": "998837220"
  }
}