{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318",
    "entityType": "User",
    "nonce": "0x63bbf40b65280014f41a991949865f25f00bbf63486892a402e04c73f7330ba1",
    "signature": "0x75ede8a29a21bfb2d27787caab1aa4d1cbc230c7229066951c9d5859cff783ad4a664f07a7084fc1ea349f99a1c6abf655be719d9579dae9061ca5a43a88b6691b",
    "signer": "0xa927B17FfF93f52Be6CdE4758a1f1cbE6a35ec51",
    "userId": "850733672"
  }
}