{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x774f1d29818497cb09b267203ca321bb5850d85b0b46dce3209e3687dbd9a673",
    "signature": "0xe773cca5c9b2a1b704183f1162c0e3d32f1b79c35d1b069c1d3405d42d615fe12e362c20f208b80b689562fc25dcb74ccc9967eb9962a7bf29972030d02f89fd1b",
    "signer": "0x6ba0BB34067971b607FC571C6b9644Ce6D30c06C",
    "userId": "743993116"
  }
}