{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "33538",
    "entityType": "User",
    "nonce": "0xd2d71d233f4f517a2bfc7a600ec2d449eb7a266b4677ab024fcca53a5d90c6e0",
    "signature": "0x9800a7fdbec0ab1e229e5b3d08efa78888abbff9ceb0ccbb192b9f5fbe340c292b5ad44aeac47fb1be7d014a3997c7a6ca1ee61477fabb273e6025abd3416a6c1b",
    "signer": "0xab3fbeF816d349E87D7a9AF9D1b42b9D7E14A16F",
    "userId": "385866220"
  }
}