{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad2fbe3ca36a926fb23dc1bf6b1697a5141b4c21d61a19c846af6f1d92d45aca",
    "signature": "0xfdef7eb36fa92de91d6ef5e4879760cf346b9200c46812f6fdf20bd033564d571d03c038ca708ae6141ac14d828ab28be27347eceefb02850122473fd4a2d3101c",
    "signer": "0x7BeE6A029868871221bFC265e0DAE4553A4eC744",
    "userId": "229698256"
  }
}