{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2eb3a4e0e1d11fafa08d570a1af00fc9203ca9880e2b5d7cdd88bbac1400a6e2",
    "signature": "0x7cb884ec3aa6075fee5e5c2a146d0625fc246c6c954c5482e66ba5226f85e42376fe34dc7a71e9dbf3dcf3a4654c3bdb06ee9f2071d6f85ed5e0c40ecacab8cc1c",
    "signer": "0xa6FEB3f95b121dC10FA10219E1995158ca998Ddf",
    "userId": "126516013"
  }
}