{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216427183",
    "entityType": "User",
    "nonce": "0xb68fe20885fd16e68dff41e4eba7b7f8d6be62dc025eb0d1fe72a0f91a35a5e5",
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    "signer": "0xB63c8A7B935b55823f383e8f19B6207FB6b31168",
    "userId": "330374208"
  }
}