{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326088",
    "entityType": "User",
    "nonce": "0x57243be71bae5bf4c0698287e623c2d79032cd818fd29abbab361f91b2a8e3b2",
    "signature": "0xbe74372dfc6ed39f9d32ae151e9479c8a9dccfd27c75d164acc19a2d0477d0bf64e0370ae7df2c698a68335b6086d2999cf636b882d40c4bb1bd88216cbe51381b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}