{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x720ae1b840edc2f93dc176b5f6b41297f88a9798fa0ad869160db87a7107f0a0",
    "signature": "0x0935da790f85612249354e8ef79e7197cbe2d3bff94990758cad97f985f4b5240e39a69bd3a9508b95be28c7c0a541a7ae22d54c4acbcd962fe34607fd7855461b",
    "signer": "0xbfD7C54BBB5F2025f80854451949cf5E3c545F5b",
    "userId": "668159681"
  }
}