{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x298dbc98070b5a5a8bd8ed076e830cdb1ba6d84fed461d33b6281c081a93c6a3",
    "signature": "0x6f064d1341cdf6c4ed34b00b5969bee48a50ce6ecd7519f39b20c55331c99fa33abe20d611593038ed667a05f67225ef8ccd031ed1fe7068628d1de5b28a4c251b",
    "signer": "0x3BF38e176f9D15b296F6D652fcA6f97c490fbA32",
    "userId": "246244122"
  }
}