{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "685743",
    "entityType": "User",
    "nonce": "0x9c2a4e144b0ddf3db6bcd870b3affd2ecce59809593be1438531af5a65d2df91",
    "signature": "0xc64895ce60ca6bd25d1524343d28622806911b3ea6365a4e26b2c02fb7d1a4f43d425563a942a2e336cf62cd6a4c3a0766324eb5aabd38ae93e9d6e23ed23ac21c",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}