Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'b32767ca0a2fd854cbff8aaad819c895dc686b6f3d9705dd060ea8abf892b6ef' 
  AND token = 'c2L2OqcYdscDcszIM3MVR6/TRRH42T2Rg2prWJTaxl4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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