{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "406225571",
    "entityType": "User",
    "nonce": "0x2d5bafa7fd6622cc402ffc0475c92a2b6516c1aad1b9eccb0b6b1ab0736c9794",
    "signature": "0xf805f2cd3cca86794ab11750ea289590eaaf86fb7f6089ccb1501c30bbe085b40f5f06e07faa9b7422c96c3a3a001091dfcb5847dfdbcdaa129d132a7faa256f1b",
    "signer": "0xA56552Ddf7D4d833c1B3e4f8D727B787d4D1DFFe",
    "userId": "629530515"
  }
}