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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6eafabdcf0e218b30351b50b4b34b1fc3433a8c625eec4500fbf57fe886582cc' 
  AND token = 'sZSPJ9Ortcyc0dKX4OLxi6qPqwAmf7z5BL74A6BD/cM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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