{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1307476",
    "entityType": "User",
    "nonce": "0xcdf7f9f83c27b6744ecd71158dc79d9589133b191f800be5cb96e14d02f074db",
    "signature": "0x758a7af46dec2d259c7fcbd7d04d86bdf2eb53a6953e7d7fd9fd9fba95ab9c82299b1996775abbfe7389ded571b3fa194465192e8efe8eb926a3fd0550f8b8e81b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}