{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64159186",
    "entityType": "User",
    "nonce": "0x9696a09c6352d518d0bba1bc2176538355981440dbeceac96ca3d76aceeee4f1",
    "signature": "0x051a22b55f85e078ba5fd8137173ed228b66a403f7769f5b8a045ca67cc6b9c253fcfa317ebfe87a78438f101780df4bdb1d8d00b87856201b177a603e9bbba71c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}