{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288167767",
    "entityType": "User",
    "nonce": "0xf288272565ea3d0440b5cec7589f89a34c164bd97a580dfed960bbd604fc5efd",
    "signature": "0x447c9f72e56e7cb8a6c71d409bf0102bedcf735bea3b2e93eb013621780e75030a3483e65d048e98406219ffb6f111a712f44e6df997546af8efd32537d63a6a1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}