{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3848",
    "entityType": "User",
    "nonce": "0x186dcbb845710666fd09d4ae493ff4a81994bc5e78808e350e12d22862f3441d",
    "signature": "0x8f61e1f763978ea9705ab59c942553c07d1630ab44ca6787b12a0d91bf16012106c49f722697d79e52ec18b375bc04793e6b91679fdbc5a91593a922a4b839891b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}