{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28768",
    "entityType": "User",
    "nonce": "0x6988ac8474a1e340b8baf8aa69b7df090ef93e271f3f99cbbc70a5efb2670994",
    "signature": "0x515cf7063f23fd022bec5e2f7b9b9def667407311d54a66a20070e8ddc77a9e2438d43a68d7901c01b5c6e7c944277f7ee148934d4772002350feb7fb4c9d03e1b",
    "signer": "0xF1E622923dCBDeB0fca925183E9C500e78F9ce9d",
    "userId": "632120348"
  }
}