{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "395354603",
    "entityType": "User",
    "nonce": "0x3b3ce52d3b685f9c49a660497b414128c39a4d14284708388df346337447d59e",
    "signature": "0x67c8c62f06eff298be86fea0b3d70e4dff515cc2fbc8941914d07314e8e97481555503578b1e9a7c408e44d523ffb0071742a7bf51691c24ef4fdbc38a9199a31c",
    "signer": "0xd489B786708CDd8661b152CFF27695dC12c8c0C9",
    "userId": "647391197"
  }
}