{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9dd0ef75a5daf6f2271bd6ce0bf03e1fdfe94c18e556beb31d30ba2ada92532c",
    "signature": "0x11c6502cbabc90f3a6a7d2a798ff6ba7348e8d9150984216b218dab4784b212173a901fe27deb4b81c60da45b34e1110297c4a5ef39a6696dc93351a0e8e54891c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}