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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '77a34de9b919da306a363320c122719f9096b18686c071e6684161e7ae241176' 
  AND token = 'jnkRVLJ14TAw7Chy0Qd4a7SO8xTNJl3KNuleUtAmEh0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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