{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfb0fc39dff14f6db8f6714878011a82245d99ffda846798afd24edc9d23e41bd",
    "signature": "0x02d27f38f0660147d41c184663381494ec15049bc09868da156a56bf32d462dc38450e7de077330663f4d51b86f47ee480f05267b6f69aa30c83e1c9450c5ef51c",
    "signer": "0x5d2EEd290D68a998dd87AEB0BC962c6556385D18",
    "userId": "182340625"
  }
}