{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15642",
    "entityType": "User",
    "nonce": "0x44d19db35af057da5f3bb050167faa92d302a15a86341932e711a6f0afa82ab1",
    "signature": "0xef9aeba5dd8a7aa783b9eac57a512e5c4369edf81225fb1b08d3c166a53175045582d8ed626de50b225d2f505111e5e07491f75024180a2a534a03cfe10cd42e1b",
    "signer": "0x1c4Ee34565eE3A8304706138026D7518821F356F",
    "userId": "584804802"
  }
}