{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xa0413f3763d83a13fa815b5cfe60c25341a55c06eff7b0ecdd151308c4b74491",
    "signature": "0x9fb1b323e2e26fa8fffeb3a28b0d48a7e765473e02a6bcb06e7da0016baf915b0e13e0946044000a3a2652821d69afe7ce1a7db34265e83a48aa27bb7253396d1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}