{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7380",
    "entityType": "User",
    "nonce": "0xf5b726b9b4d5baa4023bf9f3a869428a0af6be6a8d8a287ebe97e6f9bdeed3de",
    "signature": "0xb3e861df75f320130fc625749c4287b7cc19b62c5aff7531016896f56c8cfcd64827647e9259921af648afe434cab2dabc3a8b405c3681dda743fd37dd76322f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}