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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '17bcd920844ec07578b803c4b852d61674fd408051e2cf3cbb48b00ac286fe1c' 
  AND token = 'oy9bCPlDqp6KpD6V/h9iUI6VcClXWUDTrbVDA7Q+c3s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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