{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbf33782abca0e81c309d7ea76c838a3068a76ae9d3b6003430b0f2676cb361e6",
    "signature": "0xdd68caf94b9ff45649a5cc91ede5f351e540ac7c9216f2794ee885356bc815bd1e081e6f7f40fbfe65dd0fbaa3ea17f0fbdcc2d0067d885b6401231097297c4d1c",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}