{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6901",
    "entityType": "User",
    "nonce": "0x80b5fafd221cfab18f6fd9f984adccd33269f72aa192f791356cb250e51f30f4",
    "signature": "0x7b0bb22f606fbd0dc7cab793d41a833c992e9c221c66e5a11dcaaeca3168ddb32ecd843f2555cd4299f2ff053b285a5e2214d98eb2f24c79d460396a987bfeea1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}