{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "110410",
    "entityType": "User",
    "nonce": "0x204b4c8b92fefd1af690661e98a91e3ccb040b9f6673846b4cd09751759ebfc6",
    "signature": "0x5da6efa066d37277b867ed94ca145c28aa820371f4f10a56f492cbff0e873dc50a841cc3d32828d32a6d2d0771bd773ee29abe889741c408f762b0665ccb0c921c",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}