{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0xbe5f266c21c1892a0d23b0b832d7ce1ee707502d59209f905d1392dc483644e4",
    "signature": "0x99a5925d4aefd5c63acd482c08f526082519eb14e4b19809b5f768f5d75e530755a660df0a3cd3cf0ceb55db72228277b8ec750d0292af90db98fa3ad068482e1b",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}