{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1670182",
    "entityType": "User",
    "nonce": "0x4bf0d458bd087cbc0cccbcd7da51a98675ce8b92e509ed0fd1bc582b8eaeed07",
    "signature": "0x4ef738c1ee48f73d56a3824268c4c4e6c2e496b7571589069fac626bbbe0ef6e70c16d4f18498604537581e19233324c0a1e4fa5930c356e1b0e19d8fe2060f31b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}