{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x276299b166cb5c0927b88b0ede379ac78c55892eeb6e54735d189572ae3126e7",
    "signature": "0x8336d3905e9c8165634551a1592ac3e578e93dc66a05e47b95655b2280c24cd8430bb8a295032103de113fea961082112233ca3d8878d1d210885bb80931b8fc1b",
    "signer": "0x3717B58DF0fcf719037b55681bee91522D43a0f6",
    "userId": "869808891"
  }
}