{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "700466",
    "entityType": "User",
    "nonce": "0x8d22c124721b8280dd7d8f484174f8647accac90605e1653d1bef1e29e67fe37",
    "signature": "0x21ed36d913c58241f053483733420ab3b9d44791f3e2ba12181e8af6e09efa171888f3b5c95e7f6c35464f79c292c8d8a0642188f25375ed3a504fc6d127d45a1c",
    "signer": "0x505b0092f53da4d9cb0DC6D88cC5991a108A771a",
    "userId": "191305346"
  }
}