{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9cb27fd0a354c1f12a45f39c80ccc287c42a10d3f7c3dab286f07429f043b090",
    "signature": "0x44902dd99ca52c3c0a9784e9518f78f07698c49335f64c3f009a5b40008a2b7774aeebce02c90a170149bc94a278cbc4259f7d8e014c59585362a600d87f9d651c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}