{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396137",
    "entityType": "User",
    "nonce": "0x1f67239e4cb2fc10fbc54fa887fcbf46f8aa59d3a22e80f5650130514e2a03ec",
    "signature": "0x6aac367188e594e7a034c2f8359b6295522f5a9ecd4157d6c6d9789f14a9cfec034de4dacd09b0a848224a5bb12770fbc3caa54fba40fe98746c2385481852e91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}