{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x551e518470840633ea542c751062ac6c73566db25ae36fa9c40887a0fc37a03a",
    "signature": "0x8127191157fb0c7bbdadfb7d5ca132b536e782ec4d527810f7d7a16efd9291df6fc33112cab53f3c25d46d9d472143a3e453c403235b0121b87c80ed6c65eafb1c",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}