{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "687878",
    "entityType": "User",
    "nonce": "0x8c2b6d608cab0379fbc0018391e93086fc75da0150c985968969dd315194c12b",
    "signature": "0xa22cac1e9f7a45fd44a6802e39ea41fab9327e543dd82892f7dce27f58de67fe10986a424fbf490e99d782dd464b029d84b0ccb580295250c4112a74391170441b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}