{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51618",
    "entityType": "User",
    "nonce": "0x088821f41fb3af838ca4dad1cf2026308e960a8b4d8f6dfc88123db23780dda3",
    "signature": "0x6b32d3ec2a2c3aedb9f489b4b86a9332749f04e52aa12fd4f22c4547f45c2df93c0d39c32217769248dd3d2b841c903f125028f4e61f8385f8ce70209b48e67f1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}