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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0cd091145cd144c87296a0688f4a27a75a97857053e3253800fc182ec80f672f' 
  AND token = 'gbiMZDTqr/g602J/Nu6rYGIxrTrzZAwtyOS38iokt8o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00265

JSON explain

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