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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '7da17d06b2b550e7d71460c3cc87f4cdb4f876511e98f7c1fa7353c5e958ad79' 
  AND token = 'Q3W84vIQhM42o//gUEJEtwyANxd3BER0xNWQT8WfcyY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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