{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943263428",
    "entityType": "User",
    "nonce": "0xc35b31e9f7ae1dec7625f07d7a61fc110bb31feaae3978bd31a084af4189406e",
    "signature": "0x242a2f7bb73bf54aa352026786a529591fbc0ada31506e2207fb9ea2e1def91b448c9b24626c731d81d1921c6b13e8c2e48b9126c2c5dd826c806ffdf2b596a71b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}