{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149057",
    "entityType": "User",
    "nonce": "0x25849e4781d6e6d35fc89cd2bca881b3c6f0887a1e719c7d8bc70fa9d6be0b6c",
    "signature": "0x564af289cd6be68b224bc71e7849fb524054d6af33888dc7ecb42ac88a807786021b6d8eaf2be95f2b7c674bc2f5fc5c393d18e54af239b0a263654fd57b2b431c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}