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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a3ed65a01fbd2cf6a98ebad4eaf93b101c143f8ae4a7a4c0e6ae70b9bec35955' 
  AND token = 'wxZpXO2u20aS0r2o/3ayiE53rmyOyjd6BkgwVH4BSWc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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