{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0fb57f275ed885ba6d8998fae1d96ddbebde4f3cb947516b5a66d3e55b0e8f41",
    "signature": "0x0a6b6dd19700aed46eca5989f3154becc6cc3c1ddf506db560820ce7811d2f5a7fd7dd98a7676826efe0afe02dc7cd3338c4d7ed2bdeb17b13bf6462e361a31e1c",
    "signer": "0x17107e419c414445bd739673071B5d474D7d2206",
    "userId": "597485885"
  }
}