{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x26dd045654869fcfb2c129a22028ada927bb3506d8e8ad5fa9b13d2efe76df1f",
    "signature": "0x950596d479b61106beba23ede1998a6237e50ccf986b90d5dd1fb5f5c3b6a25c34608249697fe0d87e62a9473a5addafb91f720f5ec04ead15315873a92ae2bd1c",
    "signer": "0x7998d34D204eD1127E226AA1dcEddB8643ACd55A",
    "userId": "85766903"
  }
}