{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "108203",
    "entityType": "User",
    "nonce": "0x8b38c0b292b808727b64b8770303d9cd655175d8085216287d12441665ef82d7",
    "signature": "0x47286b1f97a219a3b0a567c88cfb3d9fc898bbdfd08f18b046fc000f57c99a2239e26b5186be0f499f6f3898a499b0b83aad703989c64b8a52b51cc8323a30361b",
    "signer": "0x7153827aB581A5a4289E37ff776a53d3E839Bff0",
    "userId": "937198665"
  }
}