{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104823",
    "entityType": "User",
    "nonce": "0x7d97c00b93227e7e59ce054fe2436f8152bb938beb5083e2ba2af7f42edb3916",
    "signature": "0x487b6a60cf94eca728f45818f60078030834de2b7a8441cea8c88e3013db06bd5f8b8e1581b935015c37b0e9722c2ea9c75e9f9371d8248ad1e6254eb2dbd7291c",
    "signer": "0xA262fa1E6a4e2d4fD07d405D0572e986156e8e19",
    "userId": "16238"
  }
}