{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37362455",
    "entityType": "User",
    "nonce": "0xa05288c7f59ec60d6faab39b24ca8dc2f0b5af495268b3715d4a895e20f0e075",
    "signature": "0x09d00c7b3bf9b287cefa063f12455abca9c7742f0cc1534c1ccc7574ad4f6de74859427e7a5b6d1e0f4f81672eb7f4a323e7c363bdae5840cc585c6ef63146c61b",
    "signer": "0x7fdeEB144300AC6b1Be0E83d8f006b2D3140F73D",
    "userId": "325377357"
  }
}