{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105564197",
    "entityType": "User",
    "nonce": "0x2a2bbab911e2f61ab6eedc0816ee7f939ab3598f7876b3a0def19c3ec541a779",
    "signature": "0x5e319ac35cf7c72550f6159b62541b7fb176b20353ee275384b19b33aefa91212102d656b20f508859c9d136e5945a6968fe889c7afd09328fd95e312a231db51c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}