{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73771",
    "entityType": "User",
    "nonce": "0x346820c3620ab0077421d2f9fd953367b788ea58af65824cf4e0f4c81795927e",
    "signature": "0x9668c9ce4f7d6cc63e6e7a78975a747a4727b0433dbf34d5529ef620f323a00b7e117c0c5fc980c2412d9334a87113d43ef0b4bdf37554122b22d50f46c4b5081b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}