{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x913be74628ee1eeea2cd11698b41f134070e78c0b330affc31249735e2ffe0e5",
    "signature": "0xbb12a67568e66a49a461c184523aae7da215d863e2ef062905c60488b27b985142edf0825782dea24d6956bc8e1490845bc5da174e3e5556d5c21bf4f858c60c1b",
    "signer": "0x3776E1D82Ebf03656FA9D03C18fd5B58D7Ddd337",
    "userId": "83331354"
  }
}