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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b2f84a2a84b0c5324d2c5c99f938a8260925d659276e0f8b8bd8816e04d58ea' 
  AND token = 'dEEL30PzOl9OiXzRAZ4tJAOLMePxWSPVVGzLGUHYvhE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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