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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e907cd39f4a01c3e5461e25b193830682bbb72d3dacaf9184169620353486a85' 
  AND token = '1Npq6R+gONUdWIeO7ykxh+VB0Jod/EmLpDYUJdeNImk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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