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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2ca79da2e53b7732b072e75e6930e92c10ba94b7242ec6da14b249446783076a' 
  AND token = 'r3MxzDSqk65yH6vFwDO/Pq/ovlUKHhUrtcJbvfA3VVo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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