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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6585d008bfd3a7e64942dfc673b6b8c8b838372649f3993e7692f38eb6990d55' 
  AND token = 'LyaZPav3mPY4WyPfUH00Scdb0Bv2rHh0KKnI/ddlCKA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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