{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf2f5927ad8f6baee075f8f17eb285c06b8d4fccaacf5807f0149857883cd9d5a",
    "signature": "0x4b827175aa0be28b203072fa47309f368b0130de4e783b78e42673cc084f86fd5b352cb865fc34570567925aaa322edf8fee73b2c22e810b9829090b060af9081b",
    "signer": "0x21637BdEcb4C24975A16A1056EFcB5A1CFA48553",
    "userId": "589496693"
  }
}