{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x68dd747c769a496d8c217068a94045b0c75cde8a328ab273aa6074bb79c86811",
    "signature": "0xbcfabba08f5b0dc3b95138cc04b56b8580e601be994f192da91f18bfc73ac170502b5790390be5dcd6ffd35f3a1b11919144596c2d4d37f3b2325b84300c368d1c",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}