{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "104731",
    "entityType": "User",
    "nonce": "0x6677f7332b57fb439375874aa57aac117f4281bee1bf976938617b50d236b319",
    "signature": "0x65f10edf6520c7adb0bfe1987836fea2b8c2d64d56329388d19e737b6064ee600e01139a203e2381c8a0c9aab8e52d5e71a9c6393a25ed678614fe9a551411de1c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}