{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "289459232",
    "entityType": "User",
    "nonce": "0x57e1b291231b065c1a30a6624d1d59b4f92ebae31cb98c5f2147c31e137dc519",
    "signature": "0x31b266d3834c8384ab3de114a3638e184744f165bda7f358029d690e2b923cdc36acd196f73cb3d52314189b16475c083b271a06950940799a2043aeba16cbad1b",
    "signer": "0x6370bBD2Af458B7e9105B70aA4C95049deA95a6E",
    "userId": "753303354"
  }
}