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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bed7e4ea59054cb93d3f0e9a791e97d4efc389fe06d17417cf29e415a980b9fc' 
  AND token = 'DJT66iwA1Y8b0moCobv2KKGwV5y6UgiFpX+ascwodZE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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