{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "528688046",
    "entityType": "User",
    "nonce": "0x11cb49a8c06568771fdde6254f8f158873e45de2b7284daced47960fadf4a710",
    "signature": "0x651ab50725c9d591810c40b0a14170bd3e2440256b8038d48eea9267b12db79573d11b6ac1a4cd6a4f74aa20294b9207426c35b97fdd8a875f10d59edf047ff51c",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}