{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151173271",
    "entityType": "User",
    "nonce": "0x1bc3136863cafb9b8dd24699ccb406ca1ae733b42b4007115831d447ffcd7e50",
    "signature": "0xaba83c58d5db42bee8fc261c4dd05c89ba7e96639eff04232fae78549adac31e39156f2588c96277d34032ba3f424a16fce32e30730e77a673a3608643e998e21b",
    "signer": "0x5e6d01F8B70091388F9Fc78aCe897341e3696c0f",
    "userId": "335869800"
  }
}