{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394450",
    "entityType": "User",
    "nonce": "0xe2338716c3c6c6b185ccd8c439f3fa84aa108d26bac37c0d16e8875c3980248f",
    "signature": "0xd735413ed62ebb6e17e71a32d3b4afbe1e5a95992ffe068c23a61d6afa2f14db3a8f29ce7d139f463598ad49576cf207e875505435bd09a8bad83a0cfea61ef81c",
    "signer": "0xc7713Eb062b586364a25beaaBccc93E21Df318c0",
    "userId": "269788074"
  }
}