{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3037",
    "entityType": "User",
    "nonce": "0x532501bd416316a8493964e252a363dc4952536c9d56dd068184970df7768577",
    "signature": "0x20a5e3522af82ed01a5f172cdd17a743d6396110c03925fceaa47edd0fd31cf40d8b64ecadefd7cdea675d9f6f28e0f1edf4c480a17894345a56471db5d0f0e31c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}