{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1039",
    "entityType": "User",
    "nonce": "0x43100b586fbfc8e083674cf938bb829167d7e7fe9d01564fbc96d067dcb4ca9e",
    "signature": "0x99a2b23b6e9732d362182c53a1a92ad8b0d49c54d9af5332c8449fbcd2992309119a18e7dc2a93e51a993ed8c4d7a909bb999649ab99c42db7f25e0b7e5bd3c31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}