{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "351805183",
    "entityType": "User",
    "nonce": "0x3493f8cb48bcfaac73713b704ca77446b82658a8551f88c9bf3461dfcd847b15",
    "signature": "0x938c517121ddcb61b231464fa700655e505395ab53a2b7b1d7afeefc0ca50ff2165013b6f8ab9e70b4a24a3dfcc2f7f7d46b8d6d3c7e7bcebc6869fa725ec6501b",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}