{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "308578797",
    "entityType": "User",
    "nonce": "0x37fafb123b9007a9a4df0de2e267b9497fab67016dc4bb913b50285acd22f029",
    "signature": "0x43670466ed66f6d2921386ba81b9b91f28d40c4fe2b4fe39e92dde5d582719b27a07bdb9ef45aa76cace3f474f561ddab5eda3454881924a5c27eda71a1552231b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}