{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfc067755ac3d24f09f72580d883b87b92c80648d117c56f266d5d3853c941492",
    "signature": "0x7027e5b2291eabe8efad50e8c9b2b77076725174fce1374562dfe9c0a4ac959749116e105c5ae8a590a510a9e7f37ab9ae58d4f3566c8c603b17bd26b7262ea11b",
    "signer": "0xA3e9a720e5e82C1e80f19d45c8d1F27251354a93",
    "userId": "461104293"
  }
}