{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12903",
    "entityType": "User",
    "nonce": "0xcaa80e7bd83ae5c0bdfe07c2fd81cae90b07f76bd307c0f2d0dfaaf1954fd075",
    "signature": "0x79d37171834b79650d6c5edfde2cd5f00a048a9d52bc10237b920064c6292fb253da92c823ddc4ab4533980622c7fd44ad765bb1ec37eddd3034c8be1618ce921c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}