{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28344960",
    "entityType": "User",
    "nonce": "0xf49f64318d31f16bba3c1b04565dc6fd87b56f55ee06407807fd494f8ce4e3fd",
    "signature": "0xb50299845cd9eb2f1be25200bcef53004d76dcff30878659a48de02b46aadcfd5673f8b47cea54adda062c31a3065eb42057849f0818d028f4dfc377afa1dcc81c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}