{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xda6d07a82b35d85aed2c6ce4929d3aac00e472d1efe6930a78f924561679da8b",
    "signature": "0x564142cc6549554df909865500e18e53d696ba1fa3d8980830fe472475668c404967e5c9c55f86c370f3d740da408942d689f4ac7abae775efcfbb5f479cb2e11b",
    "signer": "0xF5Bf60B79701e25bA06ea0277AB8237aA11B3eF9",
    "userId": "651740741"
  }
}