{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884320631",
    "entityType": "User",
    "nonce": "0x640d82c4f5a86699cbe1f178e955c6f7a0f75d6613526082d4169ecb2231303a",
    "signature": "0x70632dd00092e4578d892f1b44fd9073372f72b78699716826154cb7b404003178a2550c082212140f2b21df86b704cc8de9503f2011a591f18e8c36bf8735901b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}