{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1",
    "entityType": "User",
    "nonce": "0x32cf1c0155af0f28f451540c0e28df8a0d7ec732e3cc82482d08f68f1593de6a",
    "signature": "0xe63110d5e0a022e33726a43ccc069ba407b05173a4751c6cf1af8130e43042ba54cb16e468332a185d7e79c3999c7299ab1d0cc2ae5d94d81a9a32e3244ddc8a1c",
    "signer": "0xc88bd025b5DC52Cde584b07899B6E5C854Af4bC0",
    "userId": "781543844"
  }
}