{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152763",
    "entityType": "User",
    "nonce": "0x4b6ec9e67533f662201af1b6a13cccb5d54e668051156f268667bf0b17cdee4f",
    "signature": "0x171a2dc90ce1b796027fa61372797b8e4980e3cec82154f6d529c337d7c5c0524d50496aefbbca19e54d69f42e99c918291f121dcee4c92906dd682c10f8238f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}