{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad988750c0d6f35df3e0744e3f048284f0a1a19f3a03ada81def5efe889953ea",
    "signature": "0x9042ef1b2fc54003c1ef48ec4bbe8963d62db474f711227d215ec3ead2d0f71b2c73a159c0e354dac43c5ba3d27923d1217aedff4fcf8d7d74c66167b2ae13231c",
    "signer": "0x8812Cba1eBe73A6206EB227f61edaFB37944A27A",
    "userId": "992680003"
  }
}