{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73594244",
    "entityType": "User",
    "nonce": "0x7a6d398f7f7f995b2e31c562a664412709a88133a553e96d42df5233f7191902",
    "signature": "0xbd7167d30aea37bd223da4d96c31d700d441b5cefb15caf961f907d7b2668963525c38a3d6916f24692213b7a46d32a9354767af7c1eb604b2c839a0d982a4141b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}