{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2127",
    "entityType": "User",
    "nonce": "0xc7e72cbabbeba937a81877ba7dd25c9a99d468f345813765c97689eaba18cfcc",
    "signature": "0xf2e4efbd130f969b2726450df3165fe9a401c969bf5d123e7295781336a8cc594b346449b1a29b7bf44ae89bf7498a4c4b9bd8780e1e9c1b5c123e8fbb6169bd1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}