{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "667809204",
    "entityType": "User",
    "nonce": "0xa5b851ac269b470b6cf8de9d4458066494dad7d5f642c016f75bb9e8a2b70edd",
    "signature": "0x3ffac042818a48840e19b447ad1dbfe04503c7cc8a209bde87514a99ad3b92662684ca2b0f45fc78caf6766e4c7599a5208781af023a7a029247de08a27ba0cc1c",
    "signer": "0xe270C91f9476B885124d6c0208211213dC10036a",
    "userId": "94825285"
  }
}