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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0aa33e0882a25acc4c4ef4c336d5974cffff45e6bc24593a48955871ea823cee' 
  AND token = 'bcsRJIXu5aeDYTyhQ6TjpwCVpPbYUDxPZ1EW11SItvY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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