{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x9070955bbf7b91eb882273dae03a5b4e5728409ab27fe508bb9979d4196ed299",
    "signature": "0xab325b806afe1bcde935d1352c2d98e684e936dce647e05cf2d881c7f8b0be722695bbabacb14e9fc8484834c93bed46d22efda4d8c30cb7e6c5d6e8f883e6b11b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}