{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "971831429",
    "entityType": "User",
    "nonce": "0x3f1d0797f5f06617c155f4f15e0ab10e553ab9b599fe7d7ccf96547a974a96e8",
    "signature": "0x38312496c654bcef07bdaaefaa34e1d7f2076ad93c7cbf5fe9af48e08ee078dd0ab07835d353419b052e26e8e3915eceecdbec47fe2ad7f36faacc99e7116fe71c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}