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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '32c91256f9a2e017f6e1681994801d18210a79f83d3db9a7a2e630377015680c' 
  AND token = 'L0FdXtC+W7kGyOFwdX3NBSLWxTu9MoN/Px8w4fFZ4Bk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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