{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x485f43d62e03c9a9b42e6d299de90bdd87e43873630ec087dbf622703adf8591",
    "signature": "0xebc0a348f4fbf67669cd1a246093401341fc28e18806e227527171e2e29192c44af61aa9a649a79bcd92688f1b88ca46fce6a736325b0947ac1071d7afde652c1b",
    "signer": "0x100d95350871Cf056Ab8D2e2e129b8184f54C891",
    "userId": "293389074"
  }
}