{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x49de8207f8fea32b928bc79319ddda803f256334f9ac618697252be39b161c81",
    "signature": "0x37342d20c69c112df6a6b9c27e31bea44c2adb6f0476ac39dcc228faa7c04de7606ca0ede99962e388d25367351170c7313c3b46e0a33ebf5172f40b1c26d3aa1b",
    "signer": "0xAaabA8f3Cad2ffc693465bE45BEf0a1e17993471",
    "userId": "316062755"
  }
}