{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57803",
    "entityType": "User",
    "nonce": "0x0654bd24ff49bbefecb469bdb799918fed50f73235b1836b1f8a905ab1d9ea6f",
    "signature": "0x62dde17116ee1b812c4051923d1dee24b0e4c0aedad65185bda7a4618d906e4b4cd2895c11a68c448eb78055a5bf04514401e868216aa847406a2fa1fa34f4171c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}