{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332059597",
    "entityType": "User",
    "nonce": "0xfa1bfb5c40b8da57744f7f670760fd3be2494b8f6c4a3846575a2c3e23be6acf",
    "signature": "0xee21cb8e4d1451abe8c9e1b249bf40987b34c01342bc5279e7252d70f0ad21677df6b34d28ad8628ede7e28ae5de43ff4a3e113047a10dba98cd6ca51b9533fd1b",
    "signer": "0x61aC959C6029A2Cba66cD6B9AD35c9d7120DC52c",
    "userId": "313708333"
  }
}