{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "339678",
    "entityType": "User",
    "nonce": "0x046aa37350b4e368e07e12723510660c8c73647a8c90aabde354ba92e908aca2",
    "signature": "0x83650c5da4b344d577dd13a5ec11314f41c786e1d62fc87b8feae4d6d1deadb475e085cb9bd4d733c555ff6e7164e662f833030021f842036ee51e18d3b70bd21b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}