{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "974665560",
    "entityType": "User",
    "nonce": "0x313c8ff699707838e1b4bced68b2e5e989899f64d3935437d159de53a3994fa1",
    "signature": "0x9886a96fee47654c24ed21af75384cdc90c6de6efa86689e6eb77d7fe75eee19639a5b1b83b056a59e1c1cf463e4a42f0ecd89ad6b4a65af773a514ddf093c971c",
    "signer": "0x0207036e7bcdc4BDb419416998955cf4797A80A2",
    "userId": "347133559"
  }
}