{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "242893136",
    "entityType": "User",
    "nonce": "0x624630e90d23b368c2d14aa9c596ecdbbc60a526a8e79562b6d9983526a875eb",
    "signature": "0x09fc76317a8b8b75cf01a2dda42caa003b21175d2ee439a4a8224c14415b442242e5f029ef6d9c6b154beda6526ba114d4c1e28e82629ab2d5c0cfbc4b60a38a1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}