{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "533199925",
    "entityType": "User",
    "nonce": "0x3e0987f60695dc80a44ae81df9a8db65712f604506b3e50f64f5aa8c621436de",
    "signature": "0xf66bf13ca660d3e56d9eacb76fa23da64ed48efd712176548129bfdecb5595fe74cd8e634c1a1e37cead8a398a6360bdd3d4631152ac358162654af6aa5a6ce11c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}