{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203615",
    "entityType": "User",
    "nonce": "0xdb728e49ff8564076a1dbdadf37bff3adbe973dd593b995ff314deab03bab0b0",
    "signature": "0x1357db86c5b79688c295c23886f0f1d72f4b07dbb3b9d8b3c139e116a7ac04b058dc4089538555bfe3c2a57bda7d6add9703db4eadb9789ecda4c1f71a916d181c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}