{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xafc5ed06815b1313f804c076e725bf20d5c286fa542bb120cb6b8089894331a2",
    "signature": "0xbe9c5fa2dfdfd192a1d86bfd2953ea96bd7b20f86fe26e09fff67742e4dc22855699a406d058db87d0d4c0b545ff6f0abb8775ce7276a57a7b46f3b442a66e011c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}