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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c70d2b421f81f55b88fbb87e16a3d3cf7722863821c7d5f247e2bd8bd75cd714' 
  AND token = 'izALQUGOVI2YC0Fw9PAsFe70BD83TLfFL9IYr94rfjE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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