{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21102",
    "entityType": "User",
    "nonce": "0x52fd054e80dfdf51a5110b8e043bff2395ac9793c8faf0fc5cc8e17fabf1bf24",
    "signature": "0x47450baa48c4ada1c263f655aeaf49ee99d94ced735f40c0653dccd518fc44271991f059960cc47321ed989a515a9df297daf350fbef6e48204be89ed5d7663c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}