{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100735777",
    "entityType": "User",
    "nonce": "0xe6f262c48a05e3fc3d19ead0b37391ee031a815d8d02978db6313ed1169d6b09",
    "signature": "0x995bb5952d5cab82b87c809cfe2e4d4bf519fc52a5562e309c05e4a0ff4eab9866bd2d0189056614b1bb3e40314656e7be3b57012800f081e3e2c0ae00659ddc1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}