{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "122119",
    "entityType": "User",
    "nonce": "0x2b237e9527f7f4c93d884f7c5bc1913b83ca5bcf9119d61ef2109e057297ae78",
    "signature": "0xd1252bd77cb80e930fe4bb3dc08696c407f933904887e25c7a91ee05b0405aa3773b6b47bdaf1b422c18e879047a3285377be7e14c3f43511e45cda550a398ef1c",
    "signer": "0x8b0835F94A735A9d87863C553552c6f277709234",
    "userId": "940831456"
  }
}