{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964612383",
    "entityType": "User",
    "nonce": "0x02c10a3bbbf876e8994218cb1cb3c6a6823d42aa8bfc32a283ecff14235fd9bc",
    "signature": "0xe672b1b06648f5c256fb1e3b0918bd58879bd34f393d7036994b16cb853ba05303b9448cfbdd1b69b08d5974e86db5e1221e0a3ec73e28217b37f3d43fab21511c",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}