{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "153162",
    "entityType": "User",
    "nonce": "0x7ec805ac650781d6e57368b533e35c9b94d11af3c1c4018e5855c757ede6e825",
    "signature": "0x15a9a57e09d2b5a45adeed2e85b14e23905642a311f3836c998d7cf173f4e1ef56b5676f0f8df52bba4c651b653aa91c34f1adbbb9b23577fc50b43ccd729d121b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}