{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc970519e9fc6a51258c3f09aa52cf93f8627c9b657cbe68cd265aef498342f49",
    "signature": "0x6c968f5a54e77d695e6bf4b6b8008afafca74fdb0896e9dab6285cfca919cc594ec8c5e18da70f47f9edeb7928ca2fcf340f225f6849359c52e16c798eb050f11b",
    "signer": "0x0A000A14FdAc2CC14003e0dfbf1c6171Ba2e8A18",
    "userId": "983511459"
  }
}