{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "960956657",
    "entityType": "User",
    "nonce": "0x14410ed6fec35287bf97fcb122d186572fc7f769efe65669dea2b212f1a20554",
    "signature": "0xef735a69090d5f0a45145de648c41314ba0cf4188a3f2f26823419b2dc7617bf3c5b96c67523bb45bdd20602deb7998dbca6a928ce4bb6f587ed219475ecf0241b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}