{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3e1bda54877796a5b8ccdf72c7ebe818f9fb88d85fe72eb3a23984ad442a5a3d",
    "signature": "0xf72648cf35c8db785d004683096d92b9095b7db4952785d879b4ac8e73f7826634908c5d30240f1c90cf4b6fefdc2b3ccff34024fff251d775381dc75060fd7c1b",
    "signer": "0x11E1A127ea274454512cd04400a585f89BbAA1e9",
    "userId": "517657584"
  }
}