{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81894",
    "entityType": "User",
    "nonce": "0xc7faf200fff6238d26a64a62c6a56f306d795f3d2537989c677a56d690f2ab22",
    "signature": "0x855fc57d3c40f56cecb8366102563c3c43c5da3f586b401b3e09cad3955fcd717e45b991b37b9ec8aff2c1722db39168d7df3821286f198cdaec90bbdb2296d51c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}