{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "424871665",
    "entityType": "User",
    "nonce": "0x19412ff41833ea77b998e68e11275d1f42ef6032bd67dab835f8906a84d2b579",
    "signature": "0x83af86c313a553f786f00de9cf7e98dc34bd69dc11d4914ca20f5db95aad120e16761b45f76da3f44c53e0e94d5009ca9328ac8dc13a6f58f736a8787bbc34c51c",
    "signer": "0xF2b3A6c36672809DffE8C244c072e4A33b0F68b1",
    "userId": "558204482"
  }
}