{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xcbe9042e0120b16555ceb45bafa8da4a20f61c332f7a7304e012766c5ad3c934",
    "signature": "0xe33ee3e5a0649596e1111af9bf1ced560b7ad6a03b07353379df59ecbaeff6765a89e2bf50fb9ef68443fd729a35d61b9fbb34a8e7515c59e57919cb6af652781c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}