{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5344398",
    "entityType": "User",
    "nonce": "0x33551bd41b472c65bbaa743dbdff148ca765120340e9fdc0d7b799fd667e37ca",
    "signature": "0x4434ba220d24c96d2393ab16199484956c4fafd40ea15c87f7f25d36ee0dd1983abb835d8a7602e5023522c71f4ccbf81ce37cc98f279b9fc365381c670097d71c",
    "signer": "0x15e0450323a2b24D937cD33ed877d92A260d4683",
    "userId": "33298581"
  }
}