{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "278883",
    "entityType": "User",
    "nonce": "0x605226d9ccc2b01f0800348babec010af63c2922c2e62f0f89a1e4f777a6f405",
    "signature": "0xd57940274dd54c92f265fe97c3637f7839a2f75955f89b4e0115d34b1f0be6262ca80faab2eb9e8c3aef8e62ebdc8f8b7c2e0577d255df054477ae1cb3db73a61b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}