{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12794157",
    "entityType": "User",
    "nonce": "0x7d50dd23b2534f2d1be141959e62a34367324e8d8f4e74d65eef52ed36d06a95",
    "signature": "0x6bae6b9a0597ae586d6307a5485ee02b2843ff46abbc60de9fc2be4a5b7df1ad66a1b36ff2a1f1ce0b3f7b18e52510c79f7d6374624e4cdc24a4c3929bbd8fd21c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}