{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "416239376",
    "entityType": "User",
    "nonce": "0x2fa90665f70f31c985bcfeddefa570abb4f46384de6a4998b837401de96991b8",
    "signature": "0xb6044160d0b00ccf70b45abdcd455f5f1ee29f450c9de9c411cf6aac85b61fbf46b11324c364cb6932571709537ad4f0e516ebfb2aa98c16beff12ebf32d449a1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}