{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154535356",
    "entityType": "User",
    "nonce": "0x8f7429037ca6c602d43d5733042aa4e6ae0c7914372da4a60fc8a86bda882cf1",
    "signature": "0x0bb07a4147631504d1027be8a6253277e660663442398a9b40a8a363b8d42b68616fb48c5d5ae6ff78f7c43e2d7ada9affa8c1654ad727a945fb9808e91ab40c1b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}