{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "27729",
    "entityType": "User",
    "nonce": "0x808ffe9189c33072401362f8fcf12fa6d5e95c8d8c4ab3d4a803b8c2b3b3414f",
    "signature": "0x24dbc6f647a68e3cee8509f095779546b23bd6a8da8b5532a1e62b0ce885af485838b9a1911a1d830bacffee0295561dd483652a44591e337d9c191d73a2453c1b",
    "signer": "0xE4afBd70a7415430f117DC240791b402600908EB",
    "userId": "22454"
  }
}