{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "512358827",
    "entityType": "User",
    "nonce": "0xec51bdff922f7051818484acef44014b3e0dda342ef6a7ea0b2e23aed0ab8e67",
    "signature": "0xc5c4e9503e6e70f74e31fcc847433ff48a058dc523997bf9900ec2b8272c826b39585b4b84012457e8361931e46a586de07826192f43168e4ecba063c89e96461b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}