{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "298840",
    "entityType": "User",
    "nonce": "0x9db31642f8b00c8f3f4582ba2d6a51a2e8e79d295661176e8aed321f55ad70c5",
    "signature": "0x5ac3fe2e508cf8c733da8bb4106fd7e0b225359d5f50c1128efd6526c0536bc53c7c53d37f03678473b1da66a870870a22d76b680cc37bdbdf3f26a3c2e8ffa81c",
    "signer": "0x227c6D4cdFc19155a5212Bc082E6079835436E1e",
    "userId": "94961"
  }
}