{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "479689",
    "entityType": "User",
    "nonce": "0xed2f97fc1c67c5c0f8572db3e1c3e1c0de2ffe4c2c21e3f0f6b3b6dda9131a45",
    "signature": "0x670ebf6a733464cf18dab5062dc907008f4ebcbb42408a27211a1bdf6a0353af366b18cc36b81d43c61a58c8a59216a94a9e1d812223ed63f18767721b201e121c",
    "signer": "0x1Ef5331d98352E3A7eb4f177ae6BbD27cA99eD1B",
    "userId": "771602835"
  }
}