{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16958",
    "entityType": "User",
    "nonce": "0x6c8fd9d519e699aca3988b9f826d9bcbc4d1a478cba80740b8f070bff17e42bd",
    "signature": "0x7077c4a480af673a072a0689c0552fcd484a54bd1d4aa4bafab30a853c7fd1c60b8ce25f05130fcaeb7a1e2a34d60f10f31aaa33609713134402c5aecefd21641c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}