{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494935131",
    "entityType": "User",
    "nonce": "0xbbc2373b2fdc1275a0b09163d4751e1a914d972c11b0bab397d00bb12a9df1ea",
    "signature": "0xe2be30e4b86a0fc0ce5fed5ec7bb9f51a142943fb2faa7479377aabe8a4668bf43c9f6d60a03767a3dfff2f688605830f121ec65fbe7ee874102d622297069061b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}