{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0xd923d476caa47cfd57f865ea27a38cffb96c00c9f0f5f24664155eb837ea13d3",
    "signature": "0x085fb7b48ff812e3ee460e96eb3c18864358960a57af49130e3f6e2afdde60a263d41ace7ecd482067747487d23e9094b29d34db788acf929077aa98e5d886df1c",
    "signer": "0xa1962F596d0c21815F786Be31Cce30330233Cd5a",
    "userId": "653470626"
  }
}