{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271997",
    "entityType": "User",
    "nonce": "0xed6f7f93ba40edc8f304109315268726359099e148f99b6090eeb5530837ad57",
    "signature": "0x1a6ba84baae195a8d8a15a0702d32d5335ad132f31fbff00e1cfbaf5e9529c714ee4499f6679f0e5aee3ef2291050390a56bb1cce9425d6d5b67862e6c0769ad1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}