{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x118716250a588f1f84367bd8efa6de8182ee52c56c397fec3e9a1a657e1d4b13",
    "signature": "0xe564c87e007368a8ed798cecd16d36396a31263d0e5ed656cf45603399791d79657b66412bc8e58efdbc3efaf616984ccae44133cccbfdb7ee06995770ab880d1c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}