{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1640466",
    "entityType": "User",
    "nonce": "0xeaffc9fce06252fbea2c898aa7e6bed6c12571f587fc945458487f68962616df",
    "signature": "0xc381b6649d336b7064bc270e0d7772a7bdaa72cdbca99cf2f45ff9fd6aaedd8752c005e8f55b816275d95c9b8d3a1e3d88490cb03e5994c7e1b9592bd2624cd51c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}