{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x1b9bbaa4dd682b2f7deaa06aaac71f8c04fbe9f6ecb7320f3f44f0448d787bfc",
    "signature": "0x38318380b2bf94fa14bfa360a9b94ba58a3f587d0486c54042f76b1fcbf2c7d529906fcb2f4cc716b76e673a88d27f66e53a3c03313ee94e78076bbe449ace791c",
    "signer": "0x009aa7b49eAF9a76b4b0e1D3C0ef92ba4e8ECEa4",
    "userId": "350390967"
  }
}