{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0xf54a9fcd44a413224ceb1ea4b508e08a29088bc9992fae678e053adcb5305286",
    "signature": "0xa778c42e751646da44467ecd9fa5cac5885f234b2d4d5b138725ab18a7b74f4a29749e72228b696165a7ef1f2cc50cba1239848f8d64231587d20739a3317d421b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}