{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa5f63949f82f28235d65864a73ef2aeb6ef7f9c8b1df3b2ac69f86a1770e7e05",
    "signature": "0xf4bddfbd33dbe6ae52caa11c91c0b529798da0b19f0ca555cec0f840278c5f4e6546b358fdd9f078f8b23907121585a5d0a8108556c3de2feb235ba6a8217b581c",
    "signer": "0xA6C0Ff2962164Af3e15FEa8E30E721A726683772",
    "userId": "207805985"
  }
}