{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29350",
    "entityType": "User",
    "nonce": "0x13686d5c3498fd6852ce36361b17d996786d64dcf345b0db14ec714b4d55fe3b",
    "signature": "0x04cab7d7976da33ca4fd9557b1f3ce93bf0abd0183f78fe6431aea8b69a08eb86a7329483c948af47ed28919952e78c2c611c64e5d5b4e8899268db8a05bd7de1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}