{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138483",
    "entityType": "User",
    "nonce": "0x9d15777d140e1ed06a61072c295404d9df5060d1a8eb90fa18f2282d44586162",
    "signature": "0x8dbd245195be9c656143c50bb42b1aa971ec668d4527905aa2644063977edf286b957111e8aa44f66708e9a31d08188f1f33276aec20d82ec0f81cc310460f0a1b",
    "signer": "0x0E6Ef8dF2F401D8918d603B82ef321D94A721556",
    "userId": "648802251"
  }
}