{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396354",
    "entityType": "User",
    "nonce": "0x709638b25af818ae40ff6269a924b82ca92019763f9a31ee5df3544eafc53284",
    "signature": "0xdbbe63e7c996b11806c32b2d0b1247b7f856beedfde7ecc432803f3b9fc5782729c1b402136812d3a61767cafa0264f9afd88350a98c5b08820d13d2d9a0b3d71c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}