{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21640",
    "entityType": "User",
    "nonce": "0xbfbf77ffc20c820f3031f8daf7a00f137ca91715b602ac1abe6dfe44a73b2ae8",
    "signature": "0x7fc2b00762a408571ae1252159608ff7221e971e19ed027ff4853ca5e3dc9cec2ec39b26031315444b638f684c24388d1a5244b3c3d78785bbc35eeedca265a91c",
    "signer": "0x227c6D4cdFc19155a5212Bc082E6079835436E1e",
    "userId": "94961"
  }
}