{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937299109",
    "entityType": "User",
    "nonce": "0x60efeee96847f93fe7d487b953e840e903655f519f234f2ceb7e705f4e9c5275",
    "signature": "0xb492789b49e4a2a8a514479fa3b5028851d402e16d50d62409ff08b743a072bb5479ea2669bca9115a720655ab831133ff26ab3e836b41f949ebada5558730471c",
    "signer": "0x4D1242D0da3f49195E59794290Cbfd833cCD04FF",
    "userId": "627952347"
  }
}