{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "287379",
    "entityType": "User",
    "nonce": "0xc5d2d4457c51bcf351dd816f63669721c32fbd6d76325a55e8cf65552ffe345a",
    "signature": "0x68d784ac76610dccefc958c96cb057e5d7250866c2073c4205046dcbecdaa76341ffb4747155f73d7ba99230b7a9986418e07d2bf829da0d6439a3de0a9428c61c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}