Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ebc164bf3f8caef844975c44e241d7c08972dee65486150a05c6cb8f91a7680a' 
  AND token = '7v+SB4aGyMBk0u9nPUpUtM+UV2/yyeuEECDiDqn3+Tk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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