{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71cb2cfda72f8103c3c1c0f4f421f757322fe35ca83f5b23839638ffe96a20c8",
    "signature": "0x4a9811192acd90d3b99da5d73a9a95f9b163e1e4a1cd151bdde67272d04e56c5343bcaf859e1319c84f58e98169d0dcf15c9e6487b3af3dc31662fc59594b6b61b",
    "signer": "0x383294bFd9E65eAEf4acc8A621FAa35672E68439",
    "userId": "955969813"
  }
}