{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x678ede3b4560f0cf3faca1f1e6c082ff554367dd86ca794dd797d062b18693cd",
    "signature": "0x96dd5c7058835c0aaf1af16060ea34f0aaff41d43facbcb4d0f8534790da8be9098a13dade6935e26302587e6f716ee47ae548ff386294a782fdb1235a078dc81c",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}