{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348251",
    "entityType": "User",
    "nonce": "0x11b167dec8216c866fd834fdc8d709a66f8fe10e1eb4812150afc2a78ebef4c4",
    "signature": "0x2db5d545aceb194afc38e6b789b6d12b110aab41d71ddc706cb1a181f12979b84b69d08d498e7a495b4ce8f00fe3bb334dfacf6bd0ea4fa3252282cf15475d651b",
    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
  }
}