{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x01a398f5a982bd728380f07222b0ab69870524f8bbe06964e93d15108e07309b",
    "signature": "0x271a4c0d0beee1b14ef8710be27021863967ebd99ac08a9ad8293acf99e3d22530bb99d200100447dd90c839a428930550f228f71e4f6e085d93c373be2ac7b21c",
    "signer": "0x66897996b38D5FBFfa383eD077e429C63B8AD506",
    "userId": "904230991"
  }
}