{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1584941",
    "entityType": "User",
    "nonce": "0x5987555b227e55ad1e760cad144eb69fb0715194f9dc583631ca35e433f6e174",
    "signature": "0x3f8b5255c4e68f75183a65eff364754640b312b33f8d914a94fec5bed680cc49157f0dff15b31ee3d8cd4d47eb8b56a476140736a8e77cfdd71f8c759b1081541b",
    "signer": "0x919673F6f05556E55D1c9759325eEBE26D865DaC",
    "userId": "243601242"
  }
}