{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x275797764e3c87fb2b24d6c901f521649adb378f62780d8a092928ab812adc42",
    "signature": "0xcb481ccb500157942c63cba7dc639ce94bcee3b200b3a5569f017041b58c095501c9ea50d383a96c9fc75d750431f11845af34812036785b678ba4b80e6cca571c",
    "signer": "0x8C284DA8F4B0b4f78e38e8D536226332A074c30f",
    "userId": "491278861"
  }
}