{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14208",
    "entityType": "User",
    "nonce": "0xa317a5e2247951f8fd30a79ca22065950d75846e3c17cb770728e99dede78c12",
    "signature": "0x488aa2b43979375549137cc9da268a4fd5421995d65cca595c6afe795e9e7696153f659eaa5cca5c76b53fe1a994ad7e2340dfbeb5aed8c21048221bba9dfed51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}