{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54741",
    "entityType": "User",
    "nonce": "0xe2f4f9f1cf073f7dedd11575b1a8b5dd55ee93801a9445f78bca881ff4f02c6a",
    "signature": "0xdd156343b5eb2acc792b68a44744d2d760216870ba74dbbecfaf31f6f57169471d1932083affbe13682b5d60852802fa2c7105878f120a6833b7be8e41e2a9b41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}