{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc3ad2d926c928e24c1ed22d345a0af2cec39213b8512ad1ea456f4c1a30fbb02",
    "signature": "0xabfe982f5d83c8c8ecd66792f4d83e9a3296e03aad0a1d55c3b4b2f27bf57b6a156e7c4179f17fae525434575df60032a466954d89652522e9f305d877886fae1b",
    "signer": "0xc91448d4e77491Cf25add4cd2c3C6Db1dFa1141E",
    "userId": "418252339"
  }
}