{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b78056f367f51cedca4286b7773a54836eb2d80191d826b03a2acd80255cc43",
    "signature": "0xeadacf862b40b5cb94ae4cf2e83e4a5ef60075e3844a75e00301a9665a06298870bdd62cd0485473c4068399c50aad3a27d27efca8bc593aeddb3d7ee361ab011b",
    "signer": "0xeE4A4B34F2d9E8135b73905d1997C818782ec231",
    "userId": "39423690"
  }
}