{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "997807577",
    "entityType": "User",
    "nonce": "0xb71038379626a7b20d90f403e3578196f3becdac9546a1fdb9670c9ef8d6378b",
    "signature": "0xdc2849b5d118ff85e8d3b5340cffc5a2f09c00e8e7a398e3e5208e11cb081521175c027a07627b85d06945161587b04e3f1621f60e517d9fd8361d75f54c7c3b1c",
    "signer": "0xcF1BC458908F84936B19Ca8Cf67C751CD647B02b",
    "userId": "310796"
  }
}