{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "890889753",
    "entityType": "User",
    "nonce": "0xc705325cb47782afd2a0a1b31eb6710decb4a782d52d000db76edd7980dc9a95",
    "signature": "0x78d759ab1c32e169ce7b2470ba2805242216b5fa1cde0599e981ffc00d1e977b2d546303e735e19d2335703033496ac7dce1821ac9c8583dd34f72156dd5f8011b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}