{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xeaec6345f0675c050736e9b60cfe0897419a6a2c88653427941da9c439954ca0",
    "signature": "0xe32b9133eb446e986caadf7aaeba94803b1ff5cac7482b364920c9944299d10950947fb2c5f206dd9c0882f4cc8edac73437bf15f3d9de029759f03b81474dfc1b",
    "signer": "0x5b0A1dc2f6ccD45B1cd4F2E117E56e38507f66fD",
    "userId": "958315120"
  }
}