{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "193889654",
    "entityType": "User",
    "nonce": "0x2bd3f9e42526c2e67bdd572bb1e97cd00dde0c7aab99e76dfb3c85cfac07c6b2",
    "signature": "0x5a8584ef3017f23d9222ac84ccabf20fce27fac5cb97a1f174ed90882ca4b2445a2492c8d9c2ae55a5addcbe97fed127b30ac96db87aa4393ee0b4e24f6e850f1c",
    "signer": "0x11cd379D12F9a2c7BAaE2f74F1914A8c50faF2c3",
    "userId": "387949683"
  }
}