{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144675",
    "entityType": "User",
    "nonce": "0xeb241f3394c8ad4a2a2bd2500671b87a78bca30527f62557a074b60790a6d4c3",
    "signature": "0x54d8776d30ee68bd747155ef88c1ba41a4905e480b837b8457853c684ec9287359fb560cdd3b133c7b7cc307191dd4e04c892ae3534ca9ba942a2d4bff6581b11b",
    "signer": "0xA262fa1E6a4e2d4fD07d405D0572e986156e8e19",
    "userId": "16238"
  }
}