{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954117045",
    "entityType": "User",
    "nonce": "0x1abc46ed7eb66ae416d19dcd0eb40abe25908779c9f42794648d9340cddff353",
    "signature": "0x64060a58c6988c9f10d3f55c1c5219b566dc764b02e359523b094f2ffe2d78b70ccc84d4a99d11d3ce62f4108d6e1e2182ef948555c9a728d3736b0c72061ed41c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}