{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "361531",
    "entityType": "User",
    "nonce": "0xa38deca84e0fbda03ed2d9ab7fda7990fed26e8777c381025d46be18a97fd31c",
    "signature": "0x498b9e66fd9f9171e39d4faf571802d6d538c59253281df5438c1e9a9d7774b8724434ec19d04e13f9b4e98c8dd8a1e45f3bd304dc7c1eedc9571bb253b7ead41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}