{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "122400",
    "entityType": "User",
    "nonce": "0x41320d55905a30ed2d740802002fbdda28660c25e20cb884be640779c9147111",
    "signature": "0xa8025ed8b5a5a75ef257e6ddeb59e4c54e60f4c8d8da7c3278969322668bb22f0182509a3be0a3495ad51ca20b746f2872fb8ca563e0a49b82bca660d71e297f1b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}