{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451691735",
    "entityType": "User",
    "nonce": "0x237432f5b6168ac3f62d99581e0134e3414ad54466a18345404a7f60441cf4d2",
    "signature": "0xce7e8d80c167763c96a35405380e7473c9a6ccb9a42c2e4624d9d0fe9419c9e247851d92167e4366274135afe0786cd2ccd3ba422bfe8086adba392157df3d371c",
    "signer": "0x86a8d0B0576f514420Bfba22eEB0Ba1E179885c7",
    "userId": "486842310"
  }
}