{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "733676803",
    "entityType": "User",
    "nonce": "0xb024d4f240b2a55bf382caa7c12ed4d522e52c91eec3573258b0a24fc3db0559",
    "signature": "0x8e12819ef3b21543ea60ae4437972818d8abedbb7e8d5b620ed5ad8cf14d10dc400cdb576b313135b5fe2925d510f1292f180f21c402531c1eaa2a666723fe901c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}