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SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '93ee1637104df14c32bf3e946dc8ebfeb2f058edc1f0753744dc8d72e106dbcb' 
  AND token = 'sIBLtQIPhL5iyT/CG7u/KeTIu4V2q9rxcw2DMsj4KX8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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