{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "111540320",
    "entityType": "User",
    "nonce": "0x12fb0a159ef5b0b7599b3d5b764e584936f239d9f2ae223990b9d063a5a138a7",
    "signature": "0x95e6cfacbf78b6a95ffab3372dd635794e1807369b2c3a32c27099575497527d09e345c1322be8aff05f29bbf1e127c21f8f3b43ef17bc9cc49310747701067f1b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "301637"
  }
}