{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "901788935",
    "entityType": "User",
    "nonce": "0xa9fb4122adf0e939397f93179fd074a88932affe9991c19615338e2bc7a10440",
    "signature": "0x7c3c80c551222a3a1d145ae02e6decbe389744109b41453aea0a8d5bef81e239322fff18a6ca8bc77542ab5460ef33d67143d1b306fdd07e8b855a6d6b6108091b",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}