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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2bd003421e1cd1bb5fab449e5600089b27caa6fff095726da2a10fcae3cd3860' 
  AND token = 'yDVHC0fkA9HWxmrC/rGNGG6PJiIerp63pfdiQMKfJdg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00141

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}