{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328228955",
    "entityType": "User",
    "nonce": "0xeaf2f3bc01afe78f9f6046e3f99ded666f7ed090d355f694ee2b36653b82132d",
    "signature": "0x06daf27c7d3f0c80d2877b9c42d8fa4296636c59adbb6dd32d1698c5bd42a7e87136586108a949d34b6d9c7fde4b83e34eab9aa4dd47c4d5e0e7ab66bda5e6501c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}