{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x08772d0b4b4650420cda2f2442497ceff439af4622230a24e4dc743dd25f007e",
    "signature": "0x5257fbe9fc44bf82fb2811b88ebc01066b7549a5f74251c6e29b77cd424e6d880a56e05911eb085dbd312f3dc3fed06cb3b22a3c6db626f66f036d241917459c1b",
    "signer": "0xd725bC2e46f32eAcCb5A30B4D9aEf2Aa18cff55B",
    "userId": "426652362"
  }
}