{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158618",
    "entityType": "User",
    "nonce": "0x6b13270f5a6aae1d076b14aad6bab2370c8a58ec3cd02b34fa2f3d09db722a0d",
    "signature": "0x4b23c9ec7e1f48da17704f70290a8d1267a7d8eb33b643ff7b191624ddaf45962b7881b2c27d14023b3d25ddaa41d3669ba916e90ff26cc14848869edf1c91161c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}