{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0xc96277d67ca8e307112dbfc7ecb1fa51769a5e4c7e3205e98bbd8406393aff7f",
    "signature": "0x75e89de99d12a21289a5151e79e081e86d2262309c9597ee5907dce72f280f885cb6b7973d00fb3e124e65db4ca29a890ed0b1a00846a95082937972f824b67d1b",
    "signer": "0x7904f7774eA78bd938A502d95C120965f4959411",
    "userId": "238279895"
  }
}