{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "390966",
    "entityType": "User",
    "nonce": "0x586eee6d76aa0b602c4c01a6a07d46b923e255d6ac8c478b1e78cf4c812fbf22",
    "signature": "0x13376689dbd225a15d4c9da47da98de263e475f2493bbd11667ae112a2428a330d2c1f3913f77d0584fb9c5584bbbe2f425260cd9b6c34ae56dfb65459cb1c571b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}