{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "828782637",
    "entityType": "User",
    "nonce": "0xa385b0810723260970f2336ac0bbe85280ac8291bc6c4ebb15dc6de52a04afed",
    "signature": "0xfc5a6db5320e1cdeeaaeb1faa92989babb3f0327393ddad47fd3aa82c48a607e0512db13fe96bcd2aca0c9da90d1b96ff88f847dde44cef37a11d2bbeb247c981b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}