{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "212683",
    "entityType": "User",
    "nonce": "0xcd868d2db43550b84cefea78f21b348ecd7141be75fe4f250ee453a59e4e5a42",
    "signature": "0x5b9ae9388ebd192a6c3b94f62f72d119a7e85db3eaab122b5a1737850fe05e5a7299606401487b5f6643469d2635e1678de9c842dd1479da6b0373ca376e4ee91c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}