{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "782220",
    "entityType": "User",
    "nonce": "0x3b808c79978e01ac52bb06e6f49de661b472a6b170188810764d0dbce717890e",
    "signature": "0x8c75ad47faa21e9bd96657c10db0ce6a6a1272c14d80863689179a6bf3a8037d722250a737b26ab27a0e12d9292570638d0bfc7b973a19e71b5dfc9d43dfb3a91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}