{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906913",
    "entityType": "User",
    "nonce": "0x26c1a889c44f3e33d35b780d2a37300a7927e067a3d20f8e208d95a24f231bd3",
    "signature": "0x00e61378f6d658210f3e324375a81a4b89ddd8829befa19157e3a91c330f37c75c1a02ed37194f59bf148b8daf437f84a9c6367da302919dc5b076448b76b5f81c",
    "signer": "0xcaD75E11a32f03A9Df5E6D7DC4745D7Ff5ec81ee",
    "userId": "527987796"
  }
}