{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17689",
    "entityType": "User",
    "nonce": "0xba53f94dcb4a68c646a74652934c3e16640637044fab2ec1702161bcb9875489",
    "signature": "0x2a72be2e0774ed580771b1c1728cdb53bc6ffbc10f25201786434a50474665b87bfd55fba8242224600f4401606c38a525c0f8b13518192d95d94eea4f9afe141b",
    "signer": "0x07691D0C34E03020A13BE4B5a411B64CcFff5556",
    "userId": "9014"
  }
}