{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xd1a67230db1892b399f01fce57eb3bb063a88b3150b477cd4cc7e8886a80e2d2",
    "signature": "0xd30664be41c7fbc8cdbf41d89e458ef901456833b819a08b666ea7008b797ff8104f8bf459fc10ae6416d236f45883f7c6c1e5e1085b41d9a34d36a8eb81a6c21b",
    "signer": "0xb4A0d67357A27C413B5930Adb975d62fF238D5Fc",
    "userId": "8989850"
  }
}