{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5df2c51a1997f2f3e882e82555a5f8e95d91c98d798ac099294122a823c6c86c",
    "signature": "0x5ef1e41fb004ccc17861fa48b4def8ae0fd9626751c11ed04a8764fe6dd9a58437bc05fdec6371fe59b3eecb70e66aa11272685e569178d2176ad744698d8e721b",
    "signer": "0xE13A6FCE083A5e5583Fc5b481c0Fb6754F085eC2",
    "userId": "662847056"
  }
}