{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "331699",
    "entityType": "User",
    "nonce": "0xf676235fb42fa97355c83f9f33dc8001563ea36b32ac69f8eee0f7e2e790429e",
    "signature": "0x807e1d6878fe746f7e883340840ae351ab1612ba5f6703f3f7de4d5aff2ba4b94619bdc8ac076917ca494a0faf20b2371278078135f896bdb5afa3ddb81b2efc1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}