{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51425",
    "entityType": "User",
    "nonce": "0x0e1c0be4eca2bebf63a2f8d0c0646737754bc75584fef67e706fd2dad02509ea",
    "signature": "0xb563ec69625b7dd1c6e4b6a1cb1d0fedd0ed3fc0ac400e844338de3239f1e62d760c13598ca153c41d213f5319cdf070acad72007eafc3c8a9e973e9e9f0d74e1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}