{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "341703",
    "entityType": "User",
    "nonce": "0x0c193897c9670b796a298344e8ea3edfa42c5639a3e6c80a72f14fecc21baafc",
    "signature": "0x6df6128db54ddeccaadc6d276291a005604ce7c485876084d972c2b9c15b88166c176487b30325d7f32b080723a67c31c0508c064d015e0c6584d1e4f8f483f51b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}