{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "656781386",
    "entityType": "User",
    "nonce": "0x2a49ba19d4507dcc682943b23fdc4389d7521bcd674c668dc9ffe44308c3a545",
    "signature": "0x0960da010b25ad873f11fe3376281579d4574725d1020d0b80c04900212f963b57b3132e96df18086b600a1bbe8f7e12de35a271c9aa654b7e9942847005a71f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}