{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53350",
    "entityType": "User",
    "nonce": "0x541c4f6a2ba13a8c1b152d1b4f569ed89b284cc4cbb89d93aded5fd96fd14bef",
    "signature": "0x13a350b2e007e36a5494c44c95370811cbaab6faa8e0b731f19999a6d224cd1f5acf95f589892636f52bae8fac30ececc56d7280d99072d5baa3868862ea8d6c1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}