{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328894",
    "entityType": "User",
    "nonce": "0x5dfd56c3ab05d80ae0b695f3b01bbb10c7916b6cb3f5550b7abde11656af5fa9",
    "signature": "0xbcf790bd20b441817e7718a0c8a0166609101af410767ca8bea5f6c9d1d5671c753cf181136310aafb4d4c905f2d1478abe03af6e64328985763dbe992ab855b1b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}