{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "449938034",
    "entityType": "User",
    "nonce": "0xde70c5e0e7f696414187e7a9b589523f4aaee2312748428815662d510c96f533",
    "signature": "0xe86d17e905478bc45365b7aae4347a7907dc0d21b347c53c01f40f3ac5a4f1de396779dc78c7bd4a863f7ce73581f8791e7b327408c185c43ea9c85d528027c21c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}