{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4b3f6885c8c1a6f036c0be0d3ea67e854edc76be640ea724dea218895f317dc8",
    "signature": "0xb7cb0ec5a83deac99ab4e8e3d6f64342239e88307bcd5b95494d39976ffd91693fa6e7201b6edd50246c8f6af1d18016922993af4b980744607da7c6964055301b",
    "signer": "0x6C57e78619868960ae112183fB15c54E40C2B831",
    "userId": "839952080"
  }
}