pools.start

{
  "name": "accounts_row",
  "base": "",
  "fields": [
    {
      "name": "account",
      "type": "name"
    },
    {
      "name": "last_claim_id",
      "type": "uint64"
    },
    {
      "name": "stake_balance",
      "type": "asset"
    },
    {
      "name": "tier",
      "type": "uint8"
    },
    {
      "name": "tier_history",
      "type": "pair_uint8_time_point_sec[]"
    }
  ]
}