{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77498",
    "entityType": "User",
    "nonce": "0x3cdfea6b2a714742d04203a1ff9615acc30d1c3feb60b9568791726dae06fc97",
    "signature": "0x704d2057095c96581e782db973761290a63ca6766adef70d92d24e47959a66702d24e7bc662fe6f081e3ca3192e150b33c964e29366688ca33546d3b5119389d1b",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}