{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "380378",
    "entityType": "User",
    "nonce": "0x321ac27e043597e9c041462dc05cf41f84d1edcb5e1f68abcf7736124cda9705",
    "signature": "0x6356a1786d411aa8c02970701b50533cddd2d89c4f85b218741b94b2a6f288975cf28d8e8ff53c1da923e302a7e353b3629ff8cb8dbe6b8b83cd2572c8cfb69d1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}