{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0xe6c32425980e4699159cd96803d122669ea1df850b7b475d7f9c3aad124386cf",
    "signature": "0xab63ba06adf9659577284600f846a608e0009770f75368735fa6ebfa0275b10d2175d8fa8fc4f67264dcd2b27f7978eefacd4075e3b8d4b9a2432dc99b5c59a91b",
    "signer": "0x4950A7c498b6c214e83B79502162b7f248f9e6ed",
    "userId": "499895630"
  }
}