{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57341",
    "entityType": "User",
    "nonce": "0x04f821c87fc8f0b2c5b483b360a488262b429424b9bddaba20b9ae3c40f119a3",
    "signature": "0x681d9c9acd733a690a238ee2bbccc86ecebe836ca213c741e720dce72dbfcbb81806f5b4941b480adf1fb0f56a11b282094f9f634f53318bcfc95361934c058e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}