{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870591918",
    "entityType": "User",
    "nonce": "0x4176b89a925c7a3beef5ad25e313ae88dcebb1be58eea6254217e917e7161589",
    "signature": "0x35c05eb64b5ec79cc7131e400da6def1d3e2ae2ab843ed75c5fe2d2c59a416a03bb64f01feb0952dc78777089831ace5937ddfcc666fdbd4f3745b7fcdd3898c1c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}