{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd039aa0f67c8c71b558bc20d74b16b38425166ce98fad458eebd69702c8a9006",
    "signature": "0x6d2844be4e1582a01a15da3b6d76ce1cdbc9fb4f2fa80bb2ecd5ff0cbc4bbdd4741e28361ea5e6144b63089c970ff51d652412c0701b3cdec56002ec9a7f6fa91b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}