{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1666db4e1e4a3d9c066fa2446898e33049940445c0f54a1f87f0e3edb5cc900d",
    "signature": "0xfcc3caf392677f76cf48b8677daa56362232b95b6892202501990b168923ae044b73f1b4f2ee19f4bae294866f9bf18c2cc8d6d272b6c216607d0c293225fb331c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}