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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd5c23157b520a1813770df27e411096d073b32686c6d955544d91b1d577d8b2e' 
  AND token = 'yM2tMsYkymjMa5NXkauvxQ3X2ujXYmbhBhfA4VhS8DA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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