{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "392941848",
    "entityType": "User",
    "nonce": "0x1c2e4bef02a651d4cc818549ffc9117022946c51bd586b694014995d517fec1c",
    "signature": "0xfec7ae4c95cbbc79a697c0d9b91c00181dded613e357df75d11fbec01d4fc9046877d8d69a2a8401e0e6673df1a85b3b130f1e4cf969f465e05a91037a362d051c",
    "signer": "0x76433fcfc10E04743aB4EB98660d4B47526AD243",
    "userId": "328228955"
  }
}