{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcf243c48496656680f7fc8929ec76433b7d76ccbe611d5c7cb073ae0f09a3ee9",
    "signature": "0xb217731c2cdc81d9d6cf73d2ffb088e075942fe15d0b392ab9330debd9f0f52641a5070b819900e870deeaddba1f23d52e86bddf60851d5941e7073207fba82d1c",
    "signer": "0x9ca65cF3aD8eA1f8C3232cc2aa43511b89a5aaEf",
    "userId": "63344882"
  }
}