{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "316461",
    "entityType": "User",
    "nonce": "0x0cf0c0f2199e9a15996ec169d8f59ad02024b2a2d61aa48a2bda57c63aa40fc7",
    "signature": "0x7ca68fd3cd049e16d6c7603d13e1ac800274927f7a742bd4fcd044c4e9d13608490219d069b9841f097180be6e91eb490d6322bb2a1449e62d5edd8ae5923fa71b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}