{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346318789",
    "entityType": "User",
    "nonce": "0xd4c929742c841316b7e95dafbe72c4b5af8c7edc96be64fe2a3dc4aef52f6bcf",
    "signature": "0xb8bc967da334fff8a1d1efff6170b4d065363ad33b2458534b7c884162da6be517759a53e1b8d6427d4c4c5c856285f1d734b6517b4dfdcb03b1630885676be71b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}