{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x4b237c081aa07832f0ec338e6592d428be2e256e819ad57777a2c5f25c6aa8fa",
    "signature": "0x54e543a7a0c3e1d37ee9e2072bb6dc8991407383ba5a3fb4d87573d3a12621651bd3a5ed23ad1a5c9d1eaea811eebb3b41ed1baf68e35db2ea9715c4c7a5bcaa1b",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}