{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2655",
    "entityType": "User",
    "nonce": "0x691f8edea62fbdba0606fe3116e565c736cc8e5cfff0eb3b9f21d6e6dd726216",
    "signature": "0x0fc6cc499deff92b469fb3b5c08f5d8a56ce4a382e7e9b01a164d73539f285d364e73ab92bb4a36d9eedb38049255bcf26be07da162952507d6e1813468cd1331c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}