{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173753",
    "entityType": "User",
    "nonce": "0x74754fb51b67588cbb7b25bf7dde0b076379e2051e1206e2dc8bfff1924e4d87",
    "signature": "0xa3cef50ddb3dd5cfebca28afbf04053209f90ead6627ee207b8ba9dc114ba731788c5b669d3862f970873e587b849ef577d24b2674c84928deab603cee83fde61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}