{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "84501",
    "entityType": "User",
    "nonce": "0xc809abb27c72105d7a09253da499f9ac5b3f03e9e57b1525d0bce50dfe75aea7",
    "signature": "0x8963a8e54c9da20fc32f7f7b7d17962a7f8a6174eec6b380a4cf76705911dbfb2215c8e1c9fb2e77f15d86c2858a92b90ab8e49e46fdbde1ebbc49b9595570251b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}