{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "465646",
    "entityType": "User",
    "nonce": "0x83cee5d5d403ec69ce0dd1c84a830737e22df101101720fc0366f5c64f6eda1f",
    "signature": "0xacd1628bcffcdb5862cc621385b432bc73ad8f5d3ebab95b538c0b3e75a919870538954e5bc68dcc60fe97d60a7260bb7df7d07844b178ef196b1a00aa1cd1971b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}