{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5bc3974e36fc7ac8d42779414de47ff7916a31977815cfb6b3389e3bcda999ec",
    "signature": "0x30c72328a843c469cee366bee9e8ace56c63ecb3a73cfd7370722c39a2360c8d3b6945db90c6549a71531bdee58a2365d82b602b4ad0c5605ec4a8193f6531191c",
    "signer": "0x34aA674491417d9aCC0Fc622796810A2e3908f8D",
    "userId": "665434834"
  }
}