{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381868",
    "entityType": "User",
    "nonce": "0x436e32c5970a5ad19bc315ee8490ef44b7451304ca1b8a48736156211badc497",
    "signature": "0xfef9a14134ae34bb360979d32151c7ada92223397588cf2a1d75b9049da89d4309f8b9a58490a01cca064adea729f0f5d043f913d527e7b40f0d501cde27ff811c",
    "signer": "0x934Db5f5C1A0639a5C916d7B94bf5844615F71DA",
    "userId": "753385178"
  }
}