{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x69691f674238098d8ca1946ed7d4c98d0f6047258df0885c6010966f5ff47d40",
    "signature": "0xf8591b07dde244a583c042f8c194fac30c3bdfd402d9dbe98e772909540a032a2842764bcbf1df7033a0c18940114189baf3b69e9d0e031b4a48efa91e2eeb181b",
    "signer": "0x1b3E9Ea15dF71Ced48bA8E493c9BBBcBFa25823a",
    "userId": "913385866"
  }
}