{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x938fca14548e9bd19415a67b20d2f357658a351bcad10c928fc7ac7e3d95fed7",
    "signature": "0x8b0a8aab09ae599eaf3563a4abbbf6cdeb2fbb103543bc64afc61b93b66d051f38991e25ad3fa138287fbdeff448f0c44c2c5e262c7ae977fd50d6c1b807d8bc1c",
    "signer": "0x70D5c19FC7b3e4ec8b8A97460b249F98D66C606e",
    "userId": "737164253"
  }
}