{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "790229",
    "entityType": "User",
    "nonce": "0x9cbd5ee5d5fd4ba5648e5a14795b26f414fec80cc6fa303f9fb0e9b08f9d03f0",
    "signature": "0x5eae7870e80304fa16790de95bb166479ed57f9d3dc2132db02d2e54ba4841d06909ccc6325f81da7f59c2e0740721bd037ca0732c0ac3fc7c68fcd782d0645f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}