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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c1a92e27c4e5d944d28d2f0b04104cb4709f06df9d712dfbb5ef9a8211ee7eda' 
  AND token = '1ZZzIdg0bPOR5Ckl20WrhORPyvokvzKm31lrh3emawo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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