{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "956002390",
    "entityType": "User",
    "nonce": "0x700f850de565fe10fd01697dfa14b093dca669575d9311cc82c1dbd45700c82b",
    "signature": "0xf924e1d02a9c17374dfc606b22c7117813a9579ee76fc7d9ff6607a92024ff7b0f67a6ce01dfa08752f268f44326408f7e348f7dcc229e8f3e5e0179278c8a4f1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}