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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '129c9228a6ed48ad2cb6c9afc9af848d2a14647f12b09c20da8d03fb61602d80' 
  AND token = '9Omj++uzJI1/kBb/Ld2mtlHXpHz1PqoA5qDMtfOk2gk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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