{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "220347726",
    "entityType": "User",
    "nonce": "0x8738d5d7360755b886c7bee58feb22405b7b55b2dbe179cf026c30cd793131b2",
    "signature": "0x21ba22e3346dca6a43f1a53a481d738621d78ba808a02756f713b337ee2ae3f1236b4d57fd19f0837d4d5384502403bf171c5bf8317d54328a343f07454540a21c",
    "signer": "0x9436FA87F6c8C3aa9e0F0fc7960566dEeB9e23d4",
    "userId": "390992303"
  }
}