{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395323",
    "entityType": "User",
    "nonce": "0x59feb4289c44f4afd4f080e071e1c42ca12cae140d4240a995cf3fe1d9022492",
    "signature": "0x474945a7df86fa517b7db846b3ffd835adc9dd4d2841348405bde4174496b2746958bdf9f01a478c0a3d65ded1a0a912ae8d875a237a80e981045ef2c2c0d0851c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}