{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x2603d72ef7d0c0730e8277b564425eb0c0af1d6370bba78449c1879d8de830f6",
    "signature": "0x799e6bddc13f2607364afad24ef232790f85287be224d3ebd56eb349dab550352bf241aa72786b2b64849973f25efb4110f7f75c91e629a60e15bffb08878b3b1c",
    "signer": "0x989faEfE658E0b6dF1793197b0De4137Cb1aDD3b",
    "userId": "554920508"
  }
}