{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "201061929",
    "entityType": "User",
    "nonce": "0x3a45337fcc82a7ae0de40cb8fceeaf7cb48c9815b4b7b3246bbc7ed53706f89c",
    "signature": "0x392b694cb279c5d0d1499833ffac1f5658cbe2f257ad13188bb4d8ee14a0234d44988e2b32656b494cf16f0808ca0a25901ec0a5ac5f83cb7480349cc2a2028c1c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}