{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348012",
    "entityType": "User",
    "nonce": "0x1fa0457432287758232ba13222489c5e81bd2f6ac39c789a8efff12a801bb263",
    "signature": "0xd89d430f8d454f49cccb03b913e417452761410c243d39e192dfe7864ec6be0a32ad9253753cab25edab45dd03139df5cb859b811e4e8d7be97980c4587931fc1c",
    "signer": "0x8D4C92F56Fc0052e4B6a8C64B8f4513eb117bB33",
    "userId": "59273070"
  }
}