{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "597397433",
    "entityType": "User",
    "nonce": "0x42aee663a2f6697f3da919000994115e7d350e90e05ad8850d02d87689ace4b2",
    "signature": "0x824bdece42d7bdcc4a923c2d8830b1c895da0a3a5ae938a9559d8fb96d85f44f7d69859975b6e823ae010a360a83fe2d79e199472a7b42e379c9bab87cb5946e1c",
    "signer": "0x20c238b8C67292B74399B705c8Ba45682d3854D3",
    "userId": "751451"
  }
}