{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222540",
    "entityType": "User",
    "nonce": "0x31fccb30dbe6959557ecb915c4594dec63058fe5e055b3dd8532a04e99258318",
    "signature": "0x4aad697c8bca25d1f803758216bc33ce5c3196741a782b111b4aa8e895dd9dd82392ca2e2cfd82b20fbcc7752b5b8059b4a1ce093f39415a9990f58b0ecba79b1b",
    "signer": "0xD9254B079e0e1571E56512C57188F2eec899054f",
    "userId": "854498636"
  }
}