{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "59543",
    "entityType": "User",
    "nonce": "0xbd0fb5bb2debb5545fed0bbef78a9c19635da4f6018e4e0dc15aa6247e6689d6",
    "signature": "0xa94396727fc0c585d340ed68fdb488395c6ee7dbcf38a8d08008f2555dfabb1763b90b105f64525089bc685a7d1e83c2041b5c534f9a19bf9b32d61e1c5570131c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}