{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe42d72e242feaf5df9dd9a259a86be328b5c244b35177109446354c51cfad14d",
    "signature": "0xff02f912156945eb520675bbc69d9b08d29beff10bd43a0f00184c5299ca5a013511c6e9a654ed91872b2b31d716e085257edfd7958013814b65f875d16674621c",
    "signer": "0x9698A898Ed554B831a7BB69972E1B05eCC560430",
    "userId": "967510490"
  }
}