{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "707265359",
    "entityType": "User",
    "nonce": "0x1f993f388739fe9167254d31bfdbac58156ffa59f572c527ed86ae42e7d07e18",
    "signature": "0x3103c2953b8fa15754e069b1829fbb273ddd09ca9c453f6c6bbe380c7d467b1225095c3c95e4e1424cc6804bdb5eba92b92d04509b2c572c8d1aae52b1c1c13e1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}