{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7ce5e3f7ed06f398dce205f216b8ce956c5c4412c41d30427285a61476c50408",
    "signature": "0x81c1e036e77770a5ff9ab33731a6ea2b0f9b505dde45456791456a3bf5781164116e6f0cd66a5f8f39ed755aab7849f572aa1b585708627d859b87f27451d7011c",
    "signer": "0x0a673D81a0f6C02d7DbD716E11deb3C338830B39",
    "userId": "267027466"
  }
}