{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42244",
    "entityType": "User",
    "nonce": "0x2449bf84ce6c5f39bfaf3b2fdd96ec0d27b95158a6b25df2b1c20aab32c1b6db",
    "signature": "0x5a785eeb8e98c99eea7ca945f3ecd4a6f50775f55f984c76ad84b41b96198e515352a9149a7323d2fc0c7e82caf61646a747cefe444c0b104b81407e711e80fd1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}