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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1201f2e548fbd48f1d0b80e240f0d0aacae2601a65ca0ce38a1a23316291cef5' 
  AND token = 's84C4oK3ibTadRkf2/x2JYqicVNyrh1cAU8HQsSZAS4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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