{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887242445",
    "entityType": "User",
    "nonce": "0xc43abce68dff319347103f67ad083fa9f604aa4deb64ee532a57f5b11e120891",
    "signature": "0xf7d83a596c9a2e86c03ae6682ab6344957d2a8f0fa5cb3f02eb749f963bdb08c6186a6318e08de9a3a865dfc92bef3cd22123b534744bc7c91a921cbe09f953e1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}