{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494113495",
    "entityType": "User",
    "nonce": "0xab01415d860c44b26bc3408c3f508fb9d0704b030bb91b2266e0bdf57666b8bd",
    "signature": "0x8d3d54c15eaa997b7c898bc3d648c664a2bca873b6d84360f95346bab2da93251c0f087f134b8e005108e2621fd4c0568ec0320cd678cd08f360d0cf834ddfa91b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}