{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1575278",
    "entityType": "User",
    "nonce": "0xa3ac12b76e824c6efddad9b1a2f59b55bd41d4b14ab6a5cc8f6b9e980482aa05",
    "signature": "0x17072d29ad35b4d3470e2ea6c905ed8f462d4c2676948a5a6f3aa5555bb10b8e7fe79c93b44116f91815059c7ceb7e26992353a1c211c53bd43e632e6dcab1c61c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}