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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4b336ade564938d02f16e15eef18fae597827a03fed03203a559e5fa4d22180b' 
  AND token = 'LYMe8vhl5RQNA9mjEl0KEi7xYqxkvCx7bPWNhNdUOPE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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