{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x516e1f952a542f7d8c5957080b90668db67b6307a4e0fc9aaa2b698f989767d6",
    "signature": "0xf61dec56264f5c04ea05f5e9502943b6f4c9a03cf2c6aa015b56adfe2b47fc542dead65c1ede431919ddf0a6ccce18699b504385230187e0c4cb7e60c37cbc6a1c",
    "signer": "0x765f679C4621fC391f9c6805c64558B1F96335db",
    "userId": "108115524"
  }
}