{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63885",
    "entityType": "User",
    "nonce": "0x39e490afa8bf11207c2a6b63aa16efba8ecdc4c976f75e4fdfa28333b8f14272",
    "signature": "0x0e41deee8b376902e4cedc4a761c60e64a5a22f9370ad34e908a2a479186c7b3649a5317e834b850d294d94c9f97727688cc24ae2d36553d311cc9c16648a5ab1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}