{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa214795fb08b8350e16fe204965cf822eb84c43fcc0b34e7db700c3191a67617",
    "signature": "0x877edadde4edd0781f6ec39ebbd85a13de5eab5ce18940f24fa30ef796d008de024790dba401a142dda493108bc31a5d2afe3f68b90ec2a09361e9479f0f3eca1b",
    "signer": "0x563EE268f30985Ed6dF43E3c9CeC87Ed136e697C",
    "userId": "152378654"
  }
}