{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbbf51b4e75e5e0b065b30ab890828e5d8bb6fe44d3f0c810a0ecefcf6a4d0435",
    "signature": "0x4a627361efc6e680e2fb5c57dd363d3cf7dcf9419bb17015e22609482fead0df59b6184bdacd4b6fe8a56ed7b4f60b75cdfe13a6321ca316c85a2fd719289d7c1b",
    "signer": "0x2bB7E42Bc944D023113eB9E0FC10079AEe4E50f7",
    "userId": "35744067"
  }
}