{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x050bb0cb368fce6ab653d36516d6b6d5889c6cea901dad06b13a1a243d7022bf",
    "signature": "0xd651c12194d370847300f34308adf5fee80a5123cae023dad0868d95ff5910640d508aa3766ba7099900fb2bfe6be474183251d691cff4a3bd9ae40ed16a83fd1b",
    "signer": "0x79ccb48Cd9904479BB0E6049F3B3f83892bB049f",
    "userId": "744238923"
  }
}