{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x7535430bdd71594a80209da4490bce03d31276ffc426de82e6b38cbe6840c004",
    "signature": "0x30de4d798384b69fb28a96ca1f51a682fc7a744bf85b66e19bc776f34073f4ce65d34008909592dcee250ad942e8c49cf645ddf02ae542c3e4691c749b792f2d1b",
    "signer": "0x90d627796C9E2071AAd9F8C20f6dCE95587F6d13",
    "userId": "560619378"
  }
}