{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xfc9ced3765e591081b3acfe70573ce9061da1de29ae45540c8e512de7fbac570",
    "signature": "0xd816c15b726184bd99365838bd1fb4d9f59471cc3d2b67b4c69058f2ff793e1b505012c154d861d3460cc458e22e03ad8c718559f9d3b1a8a92b586f775985281c",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}