{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xa5f8f4cbf52be3535a9685fc3a9916404e4fd231ca004d0b36cb4681e73d2448",
    "signature": "0x283926ac707808fe47abbe520b295e95cc1b15a706169f1a0a9cedaaff3659636329e5603f9eee93faac7c4c9d28f83996d9fdb28ae20b8c40df6148f9c209971c",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}