{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "306850",
    "entityType": "User",
    "nonce": "0x2ae9b52b25f9760d5a7b819eb5ddbbfc6233b397b6a2d33a80e47809309d92b1",
    "signature": "0x318a8f8493cfb1198d67b41ee77341df767f208cde459951d4a9673945a15b6c3ed7a59eda0fa587c31f8069b7308165cb1abe25c1a24e5224a01721728290961c",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}