{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486514977",
    "entityType": "User",
    "nonce": "0xc80162a07d748557abb58a6dc90dddc42316f84cc42ff8a9e9b4d40a81365f7c",
    "signature": "0x3247ef977a414329ca654f3ffad137228183853c4a2e982cec320deab20d851e0c5d355671e9ce95a29188a7ef24d433d1e9f3a66c07daaf378e6bff798a74821b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}