{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x0dbbb828af99d6bade7b6718e1c409a53d8326a9a4846d63a62c1306b8bf0165",
    "signature": "0x203d843ff536d823123957cc460cacab222fd86595c1b530867590b87846903552c27cecff4566473942fb4d903d8f12879b8579d1c9411856ff53c00a4a12041c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}