{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xcb79a41c28243ae80fadc6cf00e1cd908c9971db41b3e4364ec10aa81cfef1f1",
    "signature": "0xac2883ecc948b4dfd419291b530eba5d027c898c086ce56933dff787da50ebde01ba5e8cc886372347f49f41b20a245d523a015b751c234bb4c9996c958f84021c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}