{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x83c3da8e843b9e6751ccd4be0fce07542d58811c9e50eff1ebee24ac3764817f",
    "signature": "0xa0348129084dfd6d84d26203fead7792b50a5219f0f9b38b3319eebd85fa26b9741568de8c03bd04f0987f8e4c3e84fecedb27c3820f9b6ec5e7d4915b60f0921b",
    "signer": "0xd85dB35b244E4E635A714ea475B7F0c2FBd584BE",
    "userId": "68949189"
  }
}