{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51081",
    "entityType": "User",
    "nonce": "0x6b9bad6f9ae68e8f1e859b7cda424c744d2ed3359d75883151709c41940901ce",
    "signature": "0x524431b187b6b6616f926a5feb817a0003568b999aea2806b2fc47c90859331f2f3c3797fe0cb3a577397f18b5469c58727555e648ed031368550c781a91d7c81c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}