{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392032",
    "entityType": "User",
    "nonce": "0x9895479d2ed20b8f5e8054bf076d16162cf59c7fe35d11e0aacd06367cf8143d",
    "signature": "0x9481cfc9d4525ff249d7afaf37523a1ebd9e9e6ab0fbcea1a958e3a959aed8c969390654a3096ffcf4b65cdd004a84b2cb87cc975532acdc5e636052ec97aec11c",
    "signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
    "userId": "670307808"
  }
}