{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xafb65b1bacff9fefe4b74627d797b0d2b02836b11a71a57f08cde3ac20d81b43",
    "signature": "0x0d0e64f06dea4e1aaf4b0a14eb1a319a04ab2d654e2ca5f2249313d7d1d8d87d0abb1d1774e3994cdca2f46cfb59717e7fbb839dd22f6711f40b91619460fa6e1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}