{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294973155",
    "entityType": "User",
    "nonce": "0xf2490ba75e52bf638987926ef28f37d53d0f7e01d35e6ce80b33002f14a97c5c",
    "signature": "0x0aaa15a91855c04b2cc78a57362c4697503cec36af95371216f41b2f249bb068120c120909cc9bc8de01a6099f685b0c670a4eca623af74fe1dc0d9d4c3a674a1b",
    "signer": "0xF1E622923dCBDeB0fca925183E9C500e78F9ce9d",
    "userId": "632120348"
  }
}