{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7ddc59015714fa8baff163b140ab973e46e2ded55b5fc1e9683b7ba5ea610fab",
    "signature": "0x3a7e7621c2bf002bc1a949e1c1c26288877257b96ecad3eb53a9b47ed91a45595503416f1523236c2b95f6b09c5ddf8a8ab1b953dc5b53aed1ba9f645b2625731b",
    "signer": "0xf1371287CcA349Af4a653c15B0E788bB01fc7eBE",
    "userId": "184922871"
  }
}