{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "370554049",
    "entityType": "User",
    "nonce": "0x0f31f6117b6c8b093d798dee71d3390c173a6ceaef518cba3998f2436cb3d74e",
    "signature": "0x0a6ab90ecfe193c655513ca01e47cbb7ef06bdb2b1093dde12b93d6c8b673e767af45ebd8efa7435f01256a0961db62da2f708230742d13dfb63fd1c895705631b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}