{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x958f03a9c38da495e9b10c0ead8f369d7225e28ea784c6fd3432cad41e46d720",
    "signature": "0x44d4294f5b6924aca4ef2b954afa1bea1d0b586c8e358f87a3c86a0d5f59346c32a0ad2be5724005f66f29228fbb484d23aa68d79a1c70f03a48134e5a17f0201c",
    "signer": "0x22D9BE958cE2e34659999C5b8648F9642902aEfc",
    "userId": "280597149"
  }
}