{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "596",
    "entityType": "User",
    "nonce": "0x750a4fb765539e686d6bad7d70d86b5f402bae179284fe6536b75ed8fa16ce3a",
    "signature": "0x78a6bb574fc94ecd0b178c5270e2818e0b7cb6fb5e5c78d8bfed496cfedf571e787ff7ae3490740e1f1648292a315b14eb8a87a42066a1195d05e0bd54db481e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}