{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383246485",
    "entityType": "User",
    "nonce": "0xac3c45213fbee7f438e8823f937a2780c4ffe68d6e73104b97ea9aa2993091e3",
    "signature": "0x25f25c5dc2bdace382b5f4d7bd4a0361eb2c95dd188eac3e88d8a308b348a96b3fbd62576738778c50112d0f3fe0b5e8ea3f49430019a8cc4ec9ad734236cf551c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}