{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x713bde926e50eec7f0aa1c0df60b70e1a203a1b4dd65a33c54743132fec3f767",
    "signature": "0x7f8640b747cc23a3591ca46618261cfebcae024cde50bb3e8e26729a555e78f303bf414bdb5afd40264ea392ee0564a390961404ff6bd92f209f422c1c062c9d1b",
    "signer": "0x48D1d4f50078Eb337D3a22C1Eb3630FBCFB994F5",
    "userId": "62855208"
  }
}