{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353372364",
    "entityType": "User",
    "nonce": "0x008d8c40b14117c271c78d0e3f6528c2a7a63f83d98800c5c5a75ed5810bfd19",
    "signature": "0xa6f262d2ab3c9268dd9817a5c09f84aeab8db1c02c896933e2b3cabadbf3edad0f0a43c04eb1ed02df1441a6aef18538fe9fa644dd729e0f77723382ee70c4721b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}