{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "197187",
    "entityType": "User",
    "nonce": "0x4c0cbffe19905aebc9d6376d59c78a411921751ab329ebe31594ee38c3b48f6a",
    "signature": "0x797eeea7b4184e92deaffa7591158b8ab7d68860f07c5e19d8058f219982e94c337b551116f2cc3256cd79b3b2a4aa64b65f05327354ad815b50013b58ab1e011b",
    "signer": "0xF11F60bFb591E532d6E71E699ddfdfC58f377CA1",
    "userId": "458027684"
  }
}