{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x02ba13c3858c75393533d59a08ff37f52a2158a4321a3df0dd1d1c83ac111245",
    "signature": "0x76d9ef7eeeed276f116f068a05a134d3123631d002396cfd99955bf3e3857d28718d92acda3f54c70543b820f39cd2a86adf85aac8ff41653a548ac7164edc571b",
    "signer": "0x02cd62bf8F31A6fC900ba296b481AbA8d462F744",
    "userId": "443946049"
  }
}