{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56534466",
    "entityType": "User",
    "nonce": "0x6b4e4d9d142c411ac3a54caf423ea265f8e7ef5c206668deda7668f9b07b2821",
    "signature": "0x6ff88ad96fa22e75c4e63fc04b73b7c6d07c554ee4b4f77de06d6326f3d8c8391b894a2153cd346ce95586f562063e4262050f511fcc636b586025861a158ae81c",
    "signer": "0xd12A323399559A3773F865c8F21031bc39c29135",
    "userId": "219968466"
  }
}