{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x63329bbc5b58afe7194f7b1bfc740fcc51dfe750d9e7cf44c60ee383fc044e3c",
    "signature": "0xd72e587ee301e8c505b1d4f6ee9574fb665f4a98dd78d5b7e3b6de9287b285aa20e6203d726b08b47449fd1117605b5544d3ccdaa1bfdc7cb7890f041d280aab1c",
    "signer": "0xB9cEc556fCC8ef798bd80c79aC6631122F693A87",
    "userId": "492038763"
  }
}