{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x425f4c5dae6518c3405e71cf51d10b439b87556eafc2b0ac7b3938116220992a",
    "signature": "0xa6974cb15791ba976d1136aa975b71e56bb4ddee7400c4e30f524f32bc3c831a3e64f56798e4e12b5ff38936b2bd2aab19697f916ec49ee9f3a364220e9755251c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}