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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '130732d3d8e39c1f2b1e7c64d6e20a219e4ebe32360c3ad90d3f24463863e32a' 
  AND token = 'akOwHXKK2y3TJWjqELviD/n2w/na0tqflIW2fW1g/fI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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