{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5320",
    "entityType": "User",
    "nonce": "0x91282651ddf9121459f84006fd00288de8f634d45c4406a19481f327d7b3e1d1",
    "signature": "0xf016840f182da51321990614dec3e6a35a40bf515bac257229e3423e609768520a5c305809d9163c586330cda0cc3a479633432035e8442fd2e125baa767af7b1b",
    "signer": "0x334c1E156039f843FC1FC4B64FBc58136cE8414a",
    "userId": "973129552"
  }
}