{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138983",
    "entityType": "User",
    "nonce": "0x9c1af6eb6dfd512dac8e6fab6acce8ca7225d7f18f8536c74318bfadd15be101",
    "signature": "0xb8733b35a847e64594cdf4c22defa3fd2cef4fdabba075526dd2d527205763f50ec3f33140afae22e544061602c3feb58ab390feee4b64544c058351a186b7a01b",
    "signer": "0xC965eCf215DC75172bD11e8E1dbE76EDd838886e",
    "userId": "260849"
  }
}