{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51797",
    "entityType": "User",
    "nonce": "0xeb576342231e5b62dcccae07c206ce88b945bca206df3dff3927000c75f7ba70",
    "signature": "0x69f6c2ae9e26f23b4e292cd41e32dc6653e3688b44ad5d686cebafb47df03f535b8f07d6940ed5e4ab71d955061e9f231ce590000f03d91baef70b5e23e68d7f1b",
    "signer": "0x597338d86Eb5c539F4678517C3412D367F636844",
    "userId": "589368336"
  }
}