{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "234141",
    "entityType": "User",
    "nonce": "0x8bd45364ed7804c116940ffecebdc130c08c78edbe3f8967a3f88b1384dbbe3b",
    "signature": "0x3742225d01c72e780998c64e041495484c42a83357e5eb0dabd56af504ad78380f550e551c5c66343ecb44b26715392a5e2421bcb72a3ac02579f4bd5bcdaa5d1c",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}