{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "475275462",
    "entityType": "User",
    "nonce": "0x28cb933e2e91f9a743fd07629cd9006560414c3f2e5b75375083f62a0462fcb0",
    "signature": "0x8e78aa439c29e77f4b8c40c9d1d3ff3e4138894f31e3523d5843687648293351185bfbfe6dd91c2e7336679a65ecf9fb0817e9030af1d4743a167a31341af1df1c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}