{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "478221489",
    "entityType": "User",
    "nonce": "0x72ef60c23e51760ca5f70874d6e6d33e46e4df42dbad51b0a48ee3ccedbb557a",
    "signature": "0x58a2c640c717f06717d5afefff145f9a5d4ce9a091914e788d74561e0a4319c2022990d420afe06d89f66ed57723bf1d77a144a8ea9157924acc7509e9aa2ece1b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}