{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123004",
    "entityType": "User",
    "nonce": "0xbb359fc89c7c036511b52c2d3b48bfa935185b02a744ffe19489869689cf7dd5",
    "signature": "0x5162d35df97ef0fb26440ac7b669fcf5cbf6ef66bb8827c4c360abf3d939701052864116ba0fcf02f51fa00e5caa14daeed63eada681418e9327102fca113b231b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}