{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xef62ff8255801e57d7f0669fbe23d7258a0ce320f40fd4a3261ef8fa6d657adc",
    "signature": "0x967068f2b5da7d622f56c6068c12db7c415819a01f904239d202f724b344d41c4defcb6fd9a9b05c8d718b19c1e6a0b4b6ae3b6c5d583d99c37098703dde90ae1b",
    "signer": "0x0df3836f76f6DAE67d56d51BfD85a43D9e8b0958",
    "userId": "990130662"
  }
}