{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "661101608",
    "entityType": "User",
    "nonce": "0x65cf1e8bd218b082b9f2a63cc25f720f28b4dbfa560ff72c96ab7b327639b0c2",
    "signature": "0x6a0a150e67f0faaa360b66c3ce762cb2b01b76383ee4da3a24dbdec49d2954e244253399348ddb6d170db40463f0977bdf4f1f0d00bf60fa5119b0008269464f1c",
    "signer": "0x47bF11DdE03594c25814c08592866D0B09eb566A",
    "userId": "597397433"
  }
}