{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "688850395",
    "entityType": "User",
    "nonce": "0x30d32a297dbe1a2464ad3d2f7cc61789442163dfe885f01782b9df81f7e39adc",
    "signature": "0x9eec2b493dff83255e1b641b9bc3a100f894f35f7193592ca988bb68c894102e1945e3a057570254b1f842666c25844d61f0ff03386e85cd61f517837da4001f1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}