{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "938519346",
    "entityType": "User",
    "nonce": "0x4c3565a529944e174d2ba7d1a28e5eb7e499c13c886aab68380776eba6247ae0",
    "signature": "0x95f18c6c1c4a2a706e07d9edf456d950c7b53ff408fbfb97410392c2b2b1cf5d42d7f388a9a38d47971cd064594ff947a90bb04e6811f95e9189d80f9c0383911b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}