{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "635762934",
    "entityType": "User",
    "nonce": "0x8d84bd031f3d4070e842598584b412f11f897ee9c42afad27fc51d9f5eb9e355",
    "signature": "0x6de9d6c5be43c976ae2999de91026cadd3bf221c5fc9b5dbdbd427a6e1e49c81620ea2fb3496b5dc98c84162222d995fb443e4e1cdf76c76341d5da3e1d2a87b1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}