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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8169fbf24dde5ed52b9bfbbe75f679d9a65930be9f6646c622d1a823d5d35215' 
  AND token = '2CifZq2RATbQJykGKnk+26SOznXGOCOuh19vzlhIeVA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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