{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x26ef4468aa053dd291de8bc14421b4953df3ae8f43c2099a3fa19c72b408f0c9",
    "signature": "0x32183b8230aa1ee326a3627be7124e3f5ab252423fd93698e5473b292f7401ca71a6050841bba559ab599c01773960492d731bfc08d2b9e008e55e7262b955f01b",
    "signer": "0x168ff3b3F21912D4d676468A80Ee2af0E2F24a59",
    "userId": "124431641"
  }
}