{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666092734",
    "entityType": "User",
    "nonce": "0x46b1148fab1cfc47fb8372854e37c1916c7f62cb8840d83734404cff003f7d88",
    "signature": "0xad2cee6b097f6b57795ea7712ff49006e63e5aa116374d8a37d1f438d7d1d3347f1d41770bd899ef7477235910808281aa22ca4b7b80e4522b352789263ddde01b",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}