{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13989",
    "entityType": "User",
    "nonce": "0xbb1c9722de2bef8152c10388c7184505dee0d479562c4f181d43c1e22f63530a",
    "signature": "0xc764f2a5e36e42231562ab2635b5ce67950e9ffd9ef5581291053fad11ac56d60e8cf58cf56056f1e329efcb38c3b16c3b2a0e37b41a3b31f78a1250d0f3c79a1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}