{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45518",
    "entityType": "User",
    "nonce": "0x197aa2066d0103f9f6963d1b9828c3127fe12392bf481a680560f96adb88df12",
    "signature": "0xd8df1505e55f1fe37c622f16d71cf20ab79e40b8c2cb53d049331e550bad939e29d95abfa7cb42cdeb9502afaefcf4470c737613ebcedb1aafc69ff76b2c52a41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}