{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451691735",
    "entityType": "User",
    "nonce": "0x72d18a2e5cd36cfcc999234e3deeb2c022cd220560ba276c05fc390c04a1122b",
    "signature": "0x9c938dbe8b40cbb76c46ae88e9760e4a2cf3a7c0b136b5e25042eca8ea39e4746d08a6cdae449919e41314f374b23bf03ca569202d7e1fe2b97e399fb5808baf1c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}