{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334721",
    "entityType": "User",
    "nonce": "0x00c9b8ee1530b923ac7f1d7114df85946c6bf441106bba96ec47a8b452f491c8",
    "signature": "0xb3d488761c4c59c4b2e995a22089a99913aceb3b8cc9018aec9677b091cc82dd5a494690de979dc9ca9b7f6dff46b67c66bb5f4baafefcb30cf3530d5032960a1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}