{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7890386",
    "entityType": "User",
    "nonce": "0x4bc867c24257202003fed792235207feb2f4a1838317b45442a22b8eb6d35c4a",
    "signature": "0x6fbe7d72a3e88a2127320cf3cb5936fe892affc64a0b3b08a58a33527dbb17196c308bae170c45a0c409345a8ed7ec3028c1c5ee08aa6f92c44359cf825fbf231c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}