{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "58440",
    "entityType": "User",
    "nonce": "0x0b7c425a5a4451bcda12b0966db0f1f3d86c551d5a896c48a2b17c516e21dd1c",
    "signature": "0x4edac6956f9e84feb49862eb4c2ec990a75d7e1b9521b5ef16d45db9f49e137f6157f68ad114f882c02fac42fe697c0d8e38f40013547534f246e26455fe147e1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}